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melisa1 [442]
3 years ago
5

What is the exchange of segments of DNA between the members of a pair of chromosomes?

Biology
1 answer:
Vinil7 [7]3 years ago
6 0

Answer:

Crossing-over

Explanation:

Crossing over is an event that occurs during prophase I of meiosis which includes the exchange of genetic material between the members of a pair of chromosomes (between non-sister chromatids of homologous chromosomes). It results in genetic recombination and consequently leads to creation of variation.

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During ________ the chromosomes, which were distinct and condensed, begin to spread out into a tangle of chromatin. a nuclear en
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During telophase in mitosis or meiosis II, where chromosomes which were previously distinct and condensed, de-condense and spread out into a tangle of chromatin. At the same time, the nuclear envelope re-forms around each cluster of chromosomes in each of the daughter cells, and spindle fibres disintegrate.

Chromosomes are unlikely to de-condense and spread out into a tangle of chromatin during telophase I (i.e. Telophase of Meiosis I), since Meiosis is still ongoing, and the genetic material should be in its condensed form during Meiosis II as well. 

Hope this helps! :)
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3 years ago
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During the process of cell division, both plant and animal cells
sammy [17]
Reproduce through mitosis.
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4 years ago
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I will give brainiest + 100points
katen-ka-za [31]

Answer:

because science is great and they have completed my

7 0
2 years ago
where the carbon atoms of acetyl coa end up and where the energy that was stored in acetyl coa ends up. krebs cycle
ruslelena [56]

Since each glucose molecule produces two acetyl-CoA molecules, the Krebs cycle must be completed twice to produce the four CO2, six NADH, two FADH2, and two ATPs.

  • Catabolic reactions occur within cells during cellular respiration. It is a biochemical process by which waste materials are removed and nutrients are broken down to generate energy, which is then stored in the form of ATP. The process of aerobic respiration needs oxygen.
  • The Krebs cycle, also known as the citric acid cycle, is the last step of oxidation for amino acids, lipids, and glucose.
  • Other than glucose, many animals rely on other substances for energy.
  • Protein's metabolic byproduct, amino acids, are deaminated and converted to pyruvate and other Krebs cycle intermediates.
  • They begin the cycle and are broken down, for example. On deamination, alanine turns into pyruvate, glutamate into -ketoglutarate, and aspartate into oxaloacetate.
  • Acetyl CoA is created when fatty acids are -oxidized and enters the Krebs cycle. It is the primary mechanism through which cells produce ATP. Complete nutrient oxidation results in the production of a significant amount of energy.

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2 years ago
Which is a type of star system? dim stars solar system planets wobbling stars globular clusters
pshichka [43]

Globular clusters is a type of star system where the stars are tightly bounded by gravity.

<h3>What is a star system?</h3>

A star system can be defined as small number of stars that orbit around each other and are bound by gravitational force of attraction.

It is also called a stellar system.

Globular clusters is a type of star system with the following features;

  • It is composed of hundreds or thousands of low-metal old stars.                                    
  • Stars are similar to those in the spiral galaxy
  • Stars are tightly bound by gravity.

Hence, globular clusters is a type of star system.

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