29.03.2020

The diagram shows a section of double-stranded DNA, and includes the bonds that hold the two strands together. Chemical bonds are represented by dotted lines (label 1) and solid lines (label 2). What types of bonds are represented by the dotted lines and the solid lines in the diagram?

Get Answer

Faq

Biology

Select the correct answer. Maria wanted to grow a fern in her backyard. Acting on a suggestion from a friend, she collected brown dots from the underside of a fern’s leaves and then potted them. After a few days, Maria saw small fern leaves erupting from the pot. Which statement explains this phenomenon? A. The fern transitioned from gametophyte generation to sporophyte generation. B. The fern grew as a result of mitosis. C. The fern transitioned from sporophyte generation to gametophyte generation. D. The fern grew to be genetically identical

Step-by-step answer

P Answered by PhD

Option A : the fern transitined from gametophyte generation to sporophyte generation.

Biology

Which is most likely to help an introduced species become invasive? a low reproductive rate big difference between original and new habitats a strong predator in new habitat great tolerance to a wide range of conditions

Step-by-step answer

P Answered by PhD

Explanation: with a great tolerance to a wide range of conditions the species would adapt and thrive which would allow it to reproduce and have all it needs to survive, grow, and take over.

Biology

Suppose there are five genes in pumpkins that work additively to affect pumpkin size. A homozygous lowercase allele pumpkin, aabbccddee, weighs 20 lb. Each capitalized allele additively affects the final phenotype by either adding or subtracting weight from the base pumpkin size. The effect of a single capitalized allele is listed in the table. AlleleEffect A +6 B −2 C −3 D +3 E +4 What would the potential size range be for pumpkin offspring produced from the cross between a parent with genotype aaBbCCDdEe and a parent with genotype AaBBCcddEe?

Step-by-step answer

P Answered by PhD

Answer : 900 kg pumpkins

Biology

We have heard that seeds are high in protein. If we were to cut open a seed and look for this store of protein under the microscope ,in which cellular structure might we find it? Why does a seed need this store of protein?

Step-by-step answer

P Answered by PhD

Need this store of protein:

The seed consists of three components: embryo, endosperm (sometimes perisperm), and seed-coat. Both endosperm and embryo are the products of double fertilization, whereas the seed-coat develops from the maternal, ovular tissues. The seed habit is a significant advancement in the evolution of higher plants.

Anatomy of seed :-

Need this store of protein: The seed consists of three components: embryo, endosperm (sometimes

Seed storage proteins provide a source of amino acids and reduced N necessary for germination and early growth of the seedling.

Biology

Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation. is random is a mechanism for evolution is often related to disasters is also called “migration” deals with movement between populations

Step-by-step answer

P Answered by PhD

The T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation. is random is a mechanism for evolution is often related to disasters is also called “migration” deals with movement between populations...

Biology

Which of the following distinguishes why large corporate farms are losing favor with the public? The farms have been raising their prices due to water shortages. The public is upset with the farms’ unnatural farming practices. The farms have been withholding food in order to receive more funding. The quality of the farms’ food has declined since the 1980s.

Step-by-step answer

P Answered by PhD

Consumers are dissatisfied with the way that large corporate farms are treating nature's natural resources.

Biology

Angelica suffers from a neurological disease or disorder. She insists on wearing sunscreen every time she is exposed to the sun because it helps reduce the symptoms of her condition. Which neurological disease or disorder does Angelica most likely have?

Step-by-step answer

P Answered by PhD

Angelica suffers from lupus disease.people with this disease are extremely sensitive to sun light.

Biology

"Ceres is a dwarf planet located in the main asteroid belt of the Solar System." Based on this statement, which of these facts about Ceres would be false?

Step-by-step answer

P Answered by PhD

it orbits the planet Mars.

Biology

In 3–5 complete sentences, thoroughly explain how the protagonist s cultural background affects his or her actions and choices in your Module One short story? Provide at least two specific details from the text to show how the protagonist s cultural background affects his or her actions and choices.

Step-by-step answer

P Answered by PhD

The protagonists cultural background affects his or her actions and choices.

Biology

What percentage of errors does your body’s “auto-correct” system detect?

Step-by-step answer

P Answered by PhD

99% percentage of errors does our body's "auto-correct",system detect.

Errors associated with protein mismatch and translation is automatically detected by the body system. Once, mismatch occurs, synthesis stops, hence, this error is almost always detected at all times. Therefore, the percentage of errors automatically detected is about 99%.

Explaination: