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IRISSAK [1]
2 years ago
14

What is the part of the cell cycle process by which chromosomes in a cell nucleus are separated into two identical sets of chrom

osomes, each in its own nucleus?
Biology
2 answers:
Dvinal [7]2 years ago
8 0

Answer:

M (mitotic phase).

Explanation:

Cell cycle can be defined as a series of cyclic event, by which one parent cell divides into two daughter cells. It is divided into two phases: interphase and M (mitotic phase). During interphase, cell prepares for division by increasing its size and replicating genetic material.

M phase involves division of cell nucleus. By M phase, chromosomes present in nucleus are separated into two daughter nuclei that leads to the formation of genetically similar daughter cells.

Thus, the correct answer is 'mitotic phase.'

Zolol [24]2 years ago
4 0
 <span>Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In <span>general, mitosis </span></span>
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Charles Darwin developed his theories of evolution based on wildlife observations on which famous islands of Ecuador?
AleksandrR [38]

Answer;

The Galápagos Islands

Explanation;

-Darwin's visit to the Galapagos Islands, helped him discover several species of finches that varied from island to island, which helped him to develop his theory of natural selection. They also helped investigate evolutionary changes in Darwin's finches.

5 0
3 years ago
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Which of the following statements about autosomal recessive traits is true?
meriva

Answer:

A. If neither parent expresses the trait, but the offspring does, both parents must be heterozygous for the trait.

Explanation:

If neither parents express the trait is because they are heterozygous and the dominant allele is being expressed over the recessive trait. When parents cross they have 25% of having an offspring that expresses the recessive trait, this means the offspring is a recessive homozygous. In the attached example 25% or 1/4 will have a short stem.

6 0
3 years ago
For fertilization to occur in humans, only one sperm is needed to weaken the barrier that surrounds the egg.
photoshop1234 [79]

Answer:

False

Explanation:

Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg.  They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.

The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.

Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.

8 0
3 years ago
In a balanced ecosystem, the number of consumer is?
vova2212 [387]
The number of producers is greater then the number of consumers , primary consumers is greater then the number of secondary consumers and the secondary consumers is greater then the number of tertiary consumer
4 0
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The Mesozoic era was the “Age of Reptiles.” At the end of the Mesozoic era, many groups of animals disappeared suddenly. Scienti
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A large asteroid or comet impacted the earth.
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