Biology: What determines the traits of an organism?

What determines the traits of an organism?, №13497566, 02.06.2020 11:25

Biology

Read each of the sentences and associate it with the correct number of genes affecting phenotypes. Place each sentence into the correct box. (HINT: One sentence should be sorted into both boxes.) A graph of the frequencies of phenotypes often shows a normal distribution. returned to choices list. Depending on the number of alleles involved, two to three distinct phenotypes are generally observed. A graph of the frequencies of phenotypes often shows a normal distribution.Genes may be on the same chromosome or different chromosomes. All alleles are

Step-by-step answer

P Answered by PhD

A graph of frequencies of phenotypes often shows a normal distribution . Genes may be on the same chromosomes or different chromosomes.

Biology

Gregor mendel used pea plants that were heterozygous for each of two traits—seed color and seed shape—to generate a dihybrid cross. the phenotypic ratio of the resulting offspring was nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds. from these results, what could mendel conclude? a)traits are inherited as pairs, sets, or groups. b)traits that are dominant mask traits that are recessive. c)gametes carry one allele for each trait. d)traits are passed independently

Step-by-step answer

P Answered by Master

115

The correct answer is D) Traits are passed independently of one another.

Dihybrid cross is a genetic cross for two traits ( like color and shape of the seed). The main purpose of the dihybrid cross that was performed by Mendel was to determine relationship between different pairs of alleles.

When he performed the dihybrid croos, he got the phenotypic ratio 9:3:3:1 corresponding to nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds.

This elucidated the law of independent assortment. According to this law, alleles of one gene are separated independent of the alleles of another gene during gamete formation. In other words, traits are transmitted to the offsprings independently.

Thus, D) is the right answer.

Biology

Gregor mendel used pea plants that were heterozygous for each of two traits—seed color and seed shape—to generate a dihybrid cross. the phenotypic ratio of the resulting offspring was nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds. from these results, what could mendel conclude? a)traits are inherited as pairs, sets, or groups. b)traits that are dominant mask traits that are recessive. c)gametes carry one allele for each trait. d)traits are passed independently

Step-by-step answer

P Answered by Specialist

115

The correct answer is D) Traits are passed independently of one another.

Dihybrid cross is a genetic cross for two traits ( like color and shape of the seed). The main purpose of the dihybrid cross that was performed by Mendel was to determine relationship between different pairs of alleles.

When he performed the dihybrid croos, he got the phenotypic ratio 9:3:3:1 corresponding to nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds.

This elucidated the law of independent assortment. According to this law, alleles of one gene are separated independent of the alleles of another gene during gamete formation. In other words, traits are transmitted to the offsprings independently.

Thus, D) is the right answer.

Advanced Placement (AP)

Of the following statements, which has not been found through research in support of the trait perspective? a-traits appear to be inconsistent across time. b-certain traits show consistency in predicting certain behaviors. c-certain personality traits are displayed across cultures. d-personality traits are influenced by heredity.

Step-by-step answer

P Answered by Specialist

23

A-Traits appear to be inconsistent across time.

Explanation:

Advanced Placement (AP)

Of the following statements, which has not been found through research in support of the trait perspective? a-traits appear to be inconsistent across time. b-certain traits show consistency in predicting certain behaviors. c-certain personality traits are displayed across cultures. d-personality traits are influenced by heredity.

Step-by-step answer

P Answered by Specialist

23

A-Traits appear to be inconsistent across time.

Explanation:

Biology

Which type of traits are neither dominant nor recessive but are a combined variation of both? a. codominant traitsb. heterozygous traitsc. polygenic traitsd. sex-linked traits

Step-by-step answer

P Answered by PhD

25

The answer would be a) co-dominant traits.

tip: co-dominance is when both a dominant and a recessive allele are present, which creates offspring with both traits which results in a new phenotype and genotype.

hopefully this helps :)

Biology

Which type of traits are neither dominant nor recessive but are a combined variation of both? a. codominant traitsb. heterozygous traitsc. polygenic traitsd. sex-linked traits

Step-by-step answer

P Answered by PhD

25

The answer would be a) co-dominant traits.

tip: co-dominance is when both a dominant and a recessive allele are present, which creates offspring with both traits which results in a new phenotype and genotype.

hopefully this helps :)

Social Studies

Studies examining certain traits are to clarify the nature-nurture debate. for example, because have the same genes, researchers often include them in studies that examine the relative influence of environment and heredity on these traitsstudies examining certain traits are to clarify the nature-nurture debate. for example, because have the same genes, researchers often include them in studies that examine the relative influence of environment and heredity on these traits

Step-by-step answer

P Answered by PhD

1

The answer is identical twins. Identical twins have split from on egg so they carry the exact same genetics. This allows researchers to understand how genetics and environment plays a role on certain traits, If the twins show the same traits even if they are raised in different environments then the trait is likely hereditary. If the twins show a difference in a trait then it is likely related to their environment.

Social Studies

Studies examining certain traits are to clarify the nature-nurture debate. for example, because have the same genes, researchers often include them in studies that examine the relative influence of environment and heredity on these traitsstudies examining certain traits are to clarify the nature-nurture debate. for example, because have the same genes, researchers often include them in studies that examine the relative influence of environment and heredity on these traits

Step-by-step answer

P Answered by PhD

1

The answer is identical twins. Identical twins have split from on egg so they carry the exact same genetics. This allows researchers to understand how genetics and environment plays a role on certain traits, If the twins show the same traits even if they are raised in different environments then the trait is likely hereditary. If the twins show a difference in a trait then it is likely related to their environment.

Biology

Glucose is generally phagostimulatory (stimulates eating) for animals. the observation that cockroach populations exposed to poison + glucose bait began to refuse to eat glucose brings up the question of whether this aversion behavior is learned or whether it originated as a genetic mutation that became more common in the population over generations. to answer this question, you can make use of some simple genetic crosses to look for predicted inheritance patterns. only genetic traits, rather than learned behaviors, would be expected to show the

Step-by-step answer

P Answered by PhD

A. Will have a intermediate trait 3. Glucose aversion is a genetically-determined incompletely dominant trait

B. Will refuse glucose 2. Glucose aversion is a genetically-determined dominant trait

C. Have a mix of traits depending on experience 4. Glucose aversion is a learned behavior

D. Will accept glucose 1. Glucose aversion is a genetically-determined recessive trait

Explanation:

A. Will have a intermediate trait 3. Glucose aversion is a genetically-determined incompletely dominant trait

When an intermediate genotype appears in the resulting offspring from a cross carried out between two set of populations where one population exhibits the glucose-aversion behavior and the other one does not refuse to eat glucose, then it is clear that neither of the two traits were dominant

B. Will refuse glucose 2. Glucose aversion is a genetically-determined dominant trait

When a trait is dominant , it will express itself irrespective of the nature of the pairing allele.

C. Have a mix of traits depending on experience 4. Glucose aversion is a learned behavior

When any trait with in an species appears with the passage of time by frequent and continuous exposure to the similar scenarios, then an induced characteristic is expressed which is appraised by learning behaviour of genes

D. Will accept glucose 1. Glucose aversion is a genetically-determined recessive trait

Here, the Glucose aversion trait is not expressed and hence it is a recessive trait.

What determines the traits of an organism?

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