Answer:
(a) crossing over: Meiosis I, Recombination
(b) chromatids separate at their centromeres and migrate to opposite poles: Meiosis II, Anaphase II
(c) chromosomes become aligned in pairs at the equator: Meiosis II, Metaphase II
Explanation:
Homologous recombination is a type of genetic recombination that occurs during meiosis (formation of ovum and sperm cells). The paired chromosomes of the male and female parents are aligned so that similar DNA sequences intersect. This crossing over produces an exchange of genetic material, which is an important cause of the genetic variability observed in the offspring.
Meiosis II: Anaphase II. The centromeres separate and the daughter chromatids - now individual chromosomes - move to the opposite poles of the cell. The centromeres separate, and the two chromatids of each chromosome move toward the opposite poles in the spindle.
Meiosis II: Metaphase II. Chromosomes are accommodated in the equatorial plate of metaphase, similar to what happens in mitosis. They are attached to the already fully formed meiotic spindle. Each chromosome is aligned in the equatorial plate of the metaphase, as it happens in mitosis.
D Mountain hope this helps
Answer:
Read the Explanation below.
Explanation:
1. I agree with the claim because you can see overall there is no difference in plant growth or variation if a plant has 30 ml of water or none at all.
2. I would measure the change in growth over a greater period of time to get a more accurate data set.
Answer: Nutrients and Sunlight
Explanation:
Nutrients and sunlight are two important factors for photosynthesis. Nutrients are necessary for keeping the plant alive these nutrients such as inorganic minerals are obtained by plants through soil. The sunlight is essential for splitting the molecules of water so as to produce oxygen as a product along with carbohydrates.
Answer:
An adaptive enzyme or inducible enzyme is an enzyme that is expressed only under conditions in which it is clear of adaptive value, as opposed to a constitutive enzyme which is produced all the time. The Inducible enzyme is used for the breaking-down of things in the cell.
