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Westkost [7]
3 years ago
9

BIOLOGY NEED HELP DUE TODAY PLZZ!!

Biology
1 answer:
IRINA_888 [86]3 years ago
5 0
Whats the question?





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During which phase of meiosis does each of the following events occur?
lubasha [3.4K]

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.

6 0
3 years ago
What is the density of a mineral used for?
topjm [15]

Answer:

Density is an intrinsic physical property of minerals that relates to the composition of the mineral and to the pattern in which the mineral’s atoms are arranged.

3 0
2 years ago
What body system has the final control of breathing?
almond37 [142]
Hey frnd

Lungs is d major body organ which has d final control in breathing.


Hope this helps u frnd.
8 0
4 years ago
A sex chromosome found in males; influencing the degree of maleness
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Y chromosome found in males which influence the degree of maleness
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Which of these are a function of the system shown?
Over [174]

Option (a) has a greater chance of being the answer — the respiratory system does take in Oxygen to break down glucose into Carbon dioxide and water vapor, releasing energy.

8 0
3 years ago
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