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Mathematics : asked on mucciak8356
 10.12.2020

I need help on solving parts a, b,and c.

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English
1. He will visit his grandparents for two weeks this summer. a. adverb b. conjunction c. noun d. pronoun 2. Silently read your book. a. adjective b. adverb c. preposition d. verb 3. Hey! Put that down! a. adjective b. adverb c. interjection d. noun 4. Liam brought his notebook to class. a. adverb b. conjunction c. noun d. pronoun 5. Your test scores were almost perfect. a. adjective b. adverb c. noun d. pronoun 6. Please join us for the birthday party this afternoon. a. conjunction b. interjection c. pronoun d. verb 7. French onion soup is on the
Step-by-step answer
P Answered by PhD

See explanation

Explanation:

The 8 parts of speech are:

1. Noun - is used to represent the name of anything such as name of people, places, things, animals, food etc.

2. Pronoun - It is used in place of a noun e.g he, it, your, her, our, she.

3. Verb - It is used to represent an action. It shows what someone is doing e.g eat, fight, play etc.

4. Adjective - It helps to qualify a noun e.g. big, small, white, dirty.

5. Adverb - It helps to modify either a verb or an adjective e.g. quickly, loudly, greedily.

6. Preposition - It is used to connect nouns or pronouns together. e.g. into, until, of, with, during, at, from, including, against etc.

7. Conjunction - It is used in linking of phrases or words together e.g and, nor, but, yet, so.

8. Interjection - It is used to show surprise or a sudden feeling.

The parts of speech that represents the underlined words are:

1. He = Pronoun

2. Silently = Adverb

3. Hey! = Interjection

4. Liam = Noun

5. Almost = Adverb

6. Us = Pronoun

7. French = Adjective

8. Jumped = Verb

9. In = Preposition

10. Understand = Verb

11. And = Conjunction

12. Your = Pronoun

13. Beautiful = Adjective

14. Wow! = Interjection

15. Concert = Noun

16. Against = Preposition

17. For = Conjunction

18. Italy = Noun

19. Or = Conjunction

20. So = Conjunction

21. Honesty = Noun

22. Her = Pronoun

23. Eight-foot = Adjective

24. Are = Verb

25. Perfectly = Adverb

26. Park = Noun

27. Refreshing/Hot = Adjective

28. Everyone = Pronoun

29. Stars = Noun

30. Ouch! = Interjection

31. Athletes = Noun

32. Down = Adverb

33. Your = Pronoun

34. Group = Noun

35. Team = Noun

36. Intelligent = Adjective

37. Outside = Preposition

38. Whose = Pronoun

39. New = Adjective

40. Yellow = Adjective

41. Speaks = Verb

42. Tomorrow = Adverb

43. Is = Verb

44. Beyond = Preposition

45. Seemed = Verb

46. Weakness = Noun

47. Gently = Adverb

48. Oh! = Interjection

49. Over = Preposition

50. But = Conjunction

English
Need a serial data line or bus is used for which of the following purposes? a. carry many electrical messages at one time b. check the bulbs in the instrument panel display c. transmit pulses from the ignition primary coil to the tachometer d. light a warning light when the driver s seatbelt is unbuckled gm class 2 communication toggles between a. 5 and 7 v. b. 0 and 12 v. c. 7 and 12 v. d. 0 and 7 v. technician a says that module communications networks are used to reduce the number of wires in a vehicle. technician b says that a communications
Step-by-step answer
P Answered by Specialist
1. A serial data line or bus is used for which of the following purposes?
C. Transmit pulses from the ignition primary coil to the tachometer

12. GM Class 2 communication toggles between
B. 0 and 12 V.

3. Technician A says that module communications networks are used to reduce the number of wires in a vehicle. Technician B says that a communications network is used to share data from sensors, which can be used by many different modules. Which technician is correct?
A. Technician B only

4. A magnetic field is created around a wire when
A. the wire is connected between two grounds.

5. In most automotive electrical circuits, a relay is used in which of the following situations?
C. A lower-voltage circuit controls a higher-voltage circuit.

6. A diagnostic scan tool connects to the vehicle using the
C. data link connector.

7. A diode with high resistance or an infinite reading in both directions is
C. reverse biased.

8. Two technicians are discussing how capacitors work. Technician A says that, in an open circuit, a capacitor will hold its charge until it's connected to an external circuit. Technician B says that theoretically a capacitor will hold its charge indefinitely. Who is correct?

A. Technician A

9. All of the following can be added to a circuit to reduce electromagnetic interference, except
C, a diode.

10. Technician A says when you push the horn button, electromagnetism moves an iron bar inside the horn, which opens and closes contacts in the horn circuit. Technician B says most vehicle horn circuits use a relay. Which technician is correct?
B. Both Technician A and Technician B

11. A/an is a material with four electrons in the valence ring.
D. conductor

1. Technician A says that dynamic voltage is the voltage (usually of a battery) that exists without a load being applied. Technician B says that open circuit voltage (OCV) is the voltage of the power source (battery) with the circuit in operation. Who is correct?

A. Both Technicians A and B

2. A technician connects one lead of a digital voltmeter to the positive (+) terminal of the battery and the other meter lead to the battery terminal (B) of the starter solenoid and then cranks the engine. During cranking, the voltmeter displays a reading of 878 mV. Technician A says that this reading indicates that the resistance of positive battery cable is too high. Technician B says that this reading indicates that the starter is defective. Which technician is correct?
B. Technician A only
English
Need a serial data line or bus is used for which of the following purposes? a. carry many electrical messages at one time b. check the bulbs in the instrument panel display c. transmit pulses from the ignition primary coil to the tachometer d. light a warning light when the driver s seatbelt is unbuckled gm class 2 communication toggles between a. 5 and 7 v. b. 0 and 12 v. c. 7 and 12 v. d. 0 and 7 v. technician a says that module communications networks are used to reduce the number of wires in a vehicle. technician b says that a communications
Step-by-step answer
P Answered by Specialist
1. A serial data line or bus is used for which of the following purposes?
C. Transmit pulses from the ignition primary coil to the tachometer

12. GM Class 2 communication toggles between
B. 0 and 12 V.

3. Technician A says that module communications networks are used to reduce the number of wires in a vehicle. Technician B says that a communications network is used to share data from sensors, which can be used by many different modules. Which technician is correct?
A. Technician B only

4. A magnetic field is created around a wire when
A. the wire is connected between two grounds.

5. In most automotive electrical circuits, a relay is used in which of the following situations?
C. A lower-voltage circuit controls a higher-voltage circuit.

6. A diagnostic scan tool connects to the vehicle using the
C. data link connector.

7. A diode with high resistance or an infinite reading in both directions is
C. reverse biased.

8. Two technicians are discussing how capacitors work. Technician A says that, in an open circuit, a capacitor will hold its charge until it's connected to an external circuit. Technician B says that theoretically a capacitor will hold its charge indefinitely. Who is correct?

A. Technician A

9. All of the following can be added to a circuit to reduce electromagnetic interference, except
C, a diode.

10. Technician A says when you push the horn button, electromagnetism moves an iron bar inside the horn, which opens and closes contacts in the horn circuit. Technician B says most vehicle horn circuits use a relay. Which technician is correct?
B. Both Technician A and Technician B

11. A/an is a material with four electrons in the valence ring.
D. conductor

1. Technician A says that dynamic voltage is the voltage (usually of a battery) that exists without a load being applied. Technician B says that open circuit voltage (OCV) is the voltage of the power source (battery) with the circuit in operation. Who is correct?

A. Both Technicians A and B

2. A technician connects one lead of a digital voltmeter to the positive (+) terminal of the battery and the other meter lead to the battery terminal (B) of the starter solenoid and then cranks the engine. During cranking, the voltmeter displays a reading of 878 mV. Technician A says that this reading indicates that the resistance of positive battery cable is too high. Technician B says that this reading indicates that the starter is defective. Which technician is correct?
B. Technician A only
English
An led requires a forward-bias voltage of volt(s). a. 0.5 to 0.7 b. 1.5 to 2.2 c. 4.5 to 5.1 d. 0.3 to 0.5 gmlan is the general motors term for which type of module communication? a. high-speed can b. class 2 c. uart d. keyword 2000 what is the function of a capacitor in an electrical circuit? a. current-limiting resistor b. energy storage device c. current-timing device d. one-way current switch breakdown voltage is the voltage at which a zener diode will a. get damaged as a result of overload. b. stop the flow of either forward or reverse current.
Step-by-step answer
P Answered by Master

1. Is B. 1.5 to 2.2


2. Is A. High-speed CAN


3. Is B. Energy Storage device


4. Is C. Allow reverse current to flow


5. Is B. Transistor


7. Is C. Farad


11. Is D. 0 and 7V


12. Is C. Both A and B


13. Is A. The wire is connected between two grounds


14. Is D. A lower current circuit controls a higher current circuit


15 is B. Powertrain control module


The others I don't know good luck

Mathematics
Me! i do not understand one of the questions and it would be outstanding if you could me! i m sorry if i seem a little desperate, i ve been working on this quiz for the past hour. dan wants to arrange his red, blue, and green bags in a row on a shelf, where r is red, b is blue, and g is green. which tree diagram best shows the sample space of all the possible ways to arrange the three bags in a row on a shelf? option one: a tree diagram is shown. the lines branch out to r, b, and g. in the first row, the lines branch out from r to b to g and from
Step-by-step answer
P Answered by PhD

See the attached image. The tree should consist of paths (left-to-right) that exhaust all the possible arrangements. 3 choices for the first bag (R, G, or B), 2 choices for the second (color availability depends on the first bag), and 1 for the third (again dependent on previous color), so there are 3\cdot2\cdot1=3!=6 possible arrangements/permutations.


Me! i do not understand one of the questions and it would be outstanding if you could me! i'm sor
English
1. He will visit his grandparents for two weeks this summer. a. adverb b. conjunction c. noun d. pronoun 2. Silently read your book. a. adjective b. adverb c. preposition d. verb 3. Hey! Put that down! a. adjective b. adverb c. interjection d. noun 4. Liam brought his notebook to class. a. adverb b. conjunction c. noun d. pronoun 5. Your test scores were almost perfect. a. adjective b. adverb c. noun d. pronoun 6. Please join us for the birthday party this afternoon. a. conjunction b. interjection c. pronoun d. verb 7. French onion soup is on the
Step-by-step answer
P Answered by PhD

See explanation

Explanation:

The 8 parts of speech are:

1. Noun - is used to represent the name of anything such as name of people, places, things, animals, food etc.

2. Pronoun - It is used in place of a noun e.g he, it, your, her, our, she.

3. Verb - It is used to represent an action. It shows what someone is doing e.g eat, fight, play etc.

4. Adjective - It helps to qualify a noun e.g. big, small, white, dirty.

5. Adverb - It helps to modify either a verb or an adjective e.g. quickly, loudly, greedily.

6. Preposition - It is used to connect nouns or pronouns together. e.g. into, until, of, with, during, at, from, including, against etc.

7. Conjunction - It is used in linking of phrases or words together e.g and, nor, but, yet, so.

8. Interjection - It is used to show surprise or a sudden feeling.

The parts of speech that represents the underlined words are:

1. He = Pronoun

2. Silently = Adverb

3. Hey! = Interjection

4. Liam = Noun

5. Almost = Adverb

6. Us = Pronoun

7. French = Adjective

8. Jumped = Verb

9. In = Preposition

10. Understand = Verb

11. And = Conjunction

12. Your = Pronoun

13. Beautiful = Adjective

14. Wow! = Interjection

15. Concert = Noun

16. Against = Preposition

17. For = Conjunction

18. Italy = Noun

19. Or = Conjunction

20. So = Conjunction

21. Honesty = Noun

22. Her = Pronoun

23. Eight-foot = Adjective

24. Are = Verb

25. Perfectly = Adverb

26. Park = Noun

27. Refreshing/Hot = Adjective

28. Everyone = Pronoun

29. Stars = Noun

30. Ouch! = Interjection

31. Athletes = Noun

32. Down = Adverb

33. Your = Pronoun

34. Group = Noun

35. Team = Noun

36. Intelligent = Adjective

37. Outside = Preposition

38. Whose = Pronoun

39. New = Adjective

40. Yellow = Adjective

41. Speaks = Verb

42. Tomorrow = Adverb

43. Is = Verb

44. Beyond = Preposition

45. Seemed = Verb

46. Weakness = Noun

47. Gently = Adverb

48. Oh! = Interjection

49. Over = Preposition

50. But = Conjunction

English
An led requires a forward-bias voltage of volt(s). a. 0.5 to 0.7 b. 1.5 to 2.2 c. 4.5 to 5.1 d. 0.3 to 0.5 gmlan is the general motors term for which type of module communication? a. high-speed can b. class 2 c. uart d. keyword 2000 what is the function of a capacitor in an electrical circuit? a. current-limiting resistor b. energy storage device c. current-timing device d. one-way current switch breakdown voltage is the voltage at which a zener diode will a. get damaged as a result of overload. b. stop the flow of either forward or reverse current.
Step-by-step answer
P Answered by Specialist

1. Is B. 1.5 to 2.2


2. Is A. High-speed CAN


3. Is B. Energy Storage device


4. Is C. Allow reverse current to flow


5. Is B. Transistor


7. Is C. Farad


11. Is D. 0 and 7V


12. Is C. Both A and B


13. Is A. The wire is connected between two grounds


14. Is D. A lower current circuit controls a higher current circuit


15 is B. Powertrain control module


The others I don't know good luck

Mathematics
Question 1 solve for x using the quadratic formula: x2 − 6x + 9 = 0 x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a x = 6 x = 3 x = 1 x = 0 question 2 solve: 49x2 − 60 = 0 round your answer to the nearest hundredth. x = 0 x = −3.32 and x = 3.32 x = −1.11 and x = 1.11 x = −0.82 and x = 0.82 question 3 when the solution of x2 − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2, what is the value of r? x equals negative b plus or minus the square root of b squared minus
Step-by-step answer
P Answered by Master

Part 1) x=3

Part 2) x = −1.11 and x = 1.11

Part 3) 105

Part 4) a = −6, b = 9, c = −7

Part 5) x equals 5 plus or minus the square root of 33, all over 2

Part 6) In the procedure

Part 7) -0.55

Part 8) The denominator is 2

Part 9) a = −6, b = −8, c = 12

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

Part 1)

in this problem we have

x^{2} -6x+9=0  

so

a=1\\b=-6\\c=9

substitute in the formula

x=\frac{-(-6)(+/-)\sqrt{-6^{2}-4(1)(9)}} {2(1)}

x=\frac{6(+/-)\sqrt{0}} {2}

x=\frac{6} {2}=3

Part 2) in this problem we have

49x^{2} -60=0  

so

a=49\\b=0\\c=-60

substitute in the formula

x=\frac{0(+/-)\sqrt{0^{2}-4(49)(-60)}} {2(49)}

x=\frac{0(+/-)\sqrt{11,760}} {98}

x=(+/-)1.11

Part 3) When the solution of x2 − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2, what is the value of r?

in this problem we have

x^{2} -9x-6=0  

so

a=1\\b=-9\\c=-6

substitute in the formula

x=\frac{-(-9)(+/-)\sqrt{-9^{2}-4(1)(-6)}} {2(1)}

x=\frac{9(+/-)\sqrt{105}} {2}

therefore

r=105

Part 4) What are the values a, b, and c in the following quadratic equation?

−6x2 = −9x + 7

in this problem we have

-6x^{2}=-9x+7  

-6x^{2}+9x-7=0  

so

a=-6\\b=9\\c=-7

Part 5) Use the quadratic formula to find the exact solutions of x2 − 5x − 2 = 0.

In this problem we have  

x^{2} -5x-2=0  

so

a=1\\b=-5\\c=-2

substitute in the formula

x=\frac{-(-5)(+/-)\sqrt{-5^{2}-4(1)(-2)}} {2(1)}

x=\frac{5(+/-)\sqrt{33}} {2}

therefore  

x equals 5 plus or minus the square root of 33, all over 2

Part 6) Quadratic Formula proof

we have

ax^{2} +bx+c=0  

Divide both sides by a

x^{2} +(b/a)x+(c/a)=0  

Complete the square

x^{2} +(b/a)x=-(c/a)  

x^{2} +\frac{b}{a}x+\frac{b^{2}}{4a^{2}} =-\frac{c}{a}+\frac{b^{2}}{4a^{2}}

Rewrite the perfect square trinomial on the left side of the equation as a binomial squared

(x+\frac{b}{2a})^{2}=-\frac{4ac}{a^{2}}+\frac{b^{2}}{4a^{2}}

Find a common denominator on the right side of the equation

(x+\frac{b}{2a})^{2}=\frac{b^{2}-4ac}{4a^{2}}

Take the square root of both sides of the equation

(x+\frac{b}{2a})=(+/-)\sqrt{\frac{b^{2}-4ac}{4a^{2}}}

Simplify the right side of the equation

(x+\frac{b}{2a})=(+/-)\frac{\sqrt{b^{2}-4ac}}{2a}

Subtract the quantity b over 2 times a from both sides of the equation

x=-\frac{b}{2a}(+/-)\frac{\sqrt{b^{2}-4ac}}{2a}

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

Part 7) in this problem we have  

3x^{2} +45x+24=0  

so

a=3\\b=45\\c=24

substitute in the formula

x=\frac{-(45)(+/-)\sqrt{45^{2}-4(3)(24)}} {2(3)}

x=\frac{-(45)(+/-)\sqrt{1,737}} {6}

x1=\frac{-(45)(+)\sqrt{1,737}} {6}=-0.55

x2=\frac{-(45)(-)\sqrt{1,737}} {6}=-14.45

therefore

The other solution is

-0.55

Part 8) in this problem we have

2x^{2} -8x+7=0  

so

a=2\\b=-8\\c=7

substitute in the formula

x=\frac{-(-8)(+/-)\sqrt{-8^{2}-4(2)(7)}} {2(2)}

x=\frac{8(+/-)\sqrt{8}} {4}

x=\frac{8(+/-)2\sqrt{2}} {4}

x=\frac{4(+/-)\sqrt{2}} {2}

therefore

The denominator is 2

Part 9) What are the values a, b, and c in the following quadratic equation?

−6x2 − 8x + 12

in this problem we have

-6x^{2} -8x+12=0  

so

a=-6\\b=-8\\c=12

Mathematics
1. the width w of a rectangular swimming pool is x+4. the area a of the pool is 2x^3-29+12. what is an expression for the length of the pool? a. 2x^2+8x+3 b. 2x^2-8x-3 c. 2x^2-8x+3 d. 2x^2+8-3 2. simplify x/6x-x^2 a. 1/6-x; where x = 0,6 b. 1/6-x; where x=6 c. 1/6; where x=0 d. 1/6 3. simplify -12x4/x4+8x^5 a. -12/1+8x; where x= -1/8 b. -12/1+8x; where x= -1/8,0 4. simplify x+5/ x^2+6x+5 a. 1/x+1; where x= -1 b. 1/x+1; where x=-1, -5 5. simplify x^2-3x-18/x+3 a. x-3 b. x-6; where x= -3 c. x-6; where x= 6 d. 1/x+3; where x= -3 6. simplify 2/3a .
Step-by-step answer
P Answered by PhD
Question 1

To find the width of the rectangle, we divide the area by the length
2x^{3}-29x+12÷x+4
We use the method of long division to get the answer. The method is shown in the first diagram below

 2x^{2}-8x+3

Question 2:
\frac{x}{6x-x^{2} } = \frac{x}{x(6-x)} = \frac{1}{6-x}

Question 3:
\frac{-12 x^{4} }{x^{4}+8 x^{5} }= \frac{-12 x^{4} }{ x^{4}(1+8x)}= \frac{-12}{1+8x}

Question 4: 
\frac{x+5}{x^{2}+6x+5}= \frac{x+5}{(x+1)(x+5)}= \frac{1}{x+1}

Question 5:
\frac{x^{2}-3x-18} {x+3}= \frac{(x-6)(x+3)}{x+3}= \frac{x-6}{1}=x-6

Question 6:
\frac{2}{3a}×\frac{2}{a^{2}}=\frac{4}{3a^{3} } where a \neq 0

Question 7: (Question is not written well)
\frac{x-5}{4x+8}×(12x^{2}+32x+8)
\frac{12 x^{3}-28 x^{2} -152x-40 }{4x+8}
By performing long division we get an answer 3 x^{2} -x-36 with remainder of 248

Question 8:
( \frac{x^{2}-16} {x-1})÷(x+4)
( \frac{ x^{2}-16 }{x-1})×\frac{1}{x+4}
\frac{(x+4)(x-1)}{x-1}×\frac{1}{x+4}
Cancelling out x+4 we obtain \frac{x+1}{x-1}

Question 9:
\frac{x^{2}+2x+1} {x-2}÷\frac{x^{2-1} }{x^{2}-4 }
\frac{ x^{2}+2x+1 }{x-2}×\frac{x^{2}-4 }{x^{2}-1}
Factorise all the quadratic expression gives
\frac{(x+1)(x+1)}{x-2}×\frac{(x-2)(x+2)}{(x+1)(x-1)}
Cancelling out (x+1) and (x-2) gives a simplest form
\frac{(x+1)(x+2)}{x-1}

Question 10:

\frac{24 w^{10}+8w^{12} }{4 x^{4} }= \frac{24w^{10} }{4 x^{4} } + \frac{8 w^{12} }{4 x^{4} }
Cancelling out the constants of each fraction
\frac{6w^{10} }{x^{4} }+ \frac{2w^{12} }{x^{4}}= \frac{6w^{10}+2w^{12} }{ x^{4}}

Question 11:

\frac{-6m^{9}-6m^{8}-16m^{6} }{2m^{3} } = \frac{-2m^{6}(3m^{3}-3m^{2}-8)}{2m^{3} }
Cancelling 2m^{3} gives us the simplified form
-m^{3}(3m^{3}-3m^{2}-8) = -3m^{6}+3m^{5}+8m^{3}

Question 12:

\frac{-4x}{x+7} - \frac{8}{x-7} = \frac{-4x(x-7)-8(x+7)}{(x+7)(x-7)}
\frac{-4 x^{2} +28x-8x-56}{(x+7)(X-7)}= \frac{-4 x^{2} +20x-56}{(x+7)(x-7)}
Factorising the numerator expression
\frac{(-4x+28)(x-2)}{(x+7)(x-7)} = \frac{-4(x-7)(x-2)}{(x+7)(x-7)}
Cancelling out x-7 gives the simplified form
\frac{-4x+8}{x-7}

Question 13:

\frac{3}{x-3} - \frac{5}{x-2}= \frac{x3(x-2)-5(x-2)}{y(x-3)(x-2)}
\frac{3x-6-5x+15}{(x-3)(x-2)}= \frac{-2x+9}{(x-3)(x-2)}

Question 14:

\frac{9}{x-1}- \frac{5}{x+4}= \frac{9(x+4)-5(x-1)}{(x-1)(x+4)}\frac{9x+36-5x+5}{(x-1)(x+4)}= \frac{4x+41}{(x-1)(x+4)}

Question 15:

\frac{-3}{x+2}- \frac{(-5)}{x+3}= \frac{-3(x+3)-(-5)(x+2)}{(x+2)(x+3)}
\frac{-3x-9+5x+10}{(x+2)(x+3)}= \frac{2x+1}{(x+2)(x+3)}

Question 16:

\frac{4}{x}+ \frac{5}{x}=-3
\frac{9}{x}=-3
x=-3

Question 17:

\frac{1}{3x-6}- \frac{5}{x-2}=12
\frac{(x-2)-5(3x-6)}{(3x-6)(x-2)} = \frac{x-2-15x+30}{(3x-6)(x-2)}= \frac{-14x+28}{(3x-6)(x-2)}

Question 18

1. the width w of a rectangular swimming pool is x+4. the area a of the pool is 2x^3-29+12. what is
Biology
In hogs, a dominant allele b results in a white belt around the body. at a separate locus the dominant allele s causes fusion of the two parts of the normally cloven hoof resulting in a condition known as syndactyly. a belted syndactylous sow was crossed to an unbelted cloven-hoofed boar, and in the litter there were: 25% belted syndactylous, 25% belted cloven, 25% unbelted syndactylous, 25% unbelted cloven. the genotypes of the parents can best be represented as: a. b/b; s/s × b/b; s/s b. b/b; s/s × b/b; s/s c. b/b; s/s × b/b; s/s d. b/b; s/s
Step-by-step answer
P Answered by Master

e. B/b,S/s x b/b;s/s

Explanation:

Here, there is a dihybrid cross between two loci: B (for a white belt around the body) and S (for syndactyly). For each locus, genotypes and phenotypes should be:

- B/B or B/b: Belted hog

- b/b: wild type or unbelted.

- S/S or S/s: syndactylous hog.

- s/s: wild type or cloven-hoofed hog.

So,  if a belted syndactylous sow was crossed with an unbelted cloven-hoofed boar, there are different possible gentotypes for the first animal:

Belted syndactylous sow: B/b;S/s, B/B;S/S, B/b;S/S or B/B;S/s.

Unbelted hoofed boar: b/b;s/s (because the wild type phenotype is recessive).

Progeny has the following phenotypes frequencies:

25% belted syndactylous

25% belted cloven

25% unbelted syndactylous

25% unbelted cloven

"Unbelted" and "cloven" are recessive conditions, therefore, both parents must have recessive alleles to inherit them to their progeny. For this reason, the most probable answer is "e. B/b;S/s x b/b;s/s". However, in the image, there is the Punnett Square that confirms this answer.


In hogs, a dominant allele b results in a white belt around the body. at a separate locus the domina
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