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nydimaria [60]
3 years ago
5

Summarize the role of meiosis in the human life cycle vs the role of mitosis.

Biology
1 answer:
mash [69]3 years ago
7 0

Answer:

Some simple organisms - such as bacteria - can reproduce by simply dividing into two new individuals. Other organisms, including human beings, reproduce through sexual reproduction. Meiosis II divides each chromosome into two copies (much like mitosis). ...

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The microscope made the discovery of cells possible
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There are 40 individuals in population 1, all with genotype A1A1, and there are 25 individuals in population 2, all with genotyp
defon

Answer:

Genetic drift

Explanation:

Based on the information given here, the observed genetic variation is most likely an example of Genetic drift .

Genetic drift is the variation in the relative frequency of different genotypes in a small population, owing to the change disappearance of particular group of genes as individuals die out do not reproduce.  

The above mentioned information indicate a typical example of Genetic drift

8 0
3 years ago
The chromosomal mutation in the zygote can be traced back to which of the following? (4.3, 4.4)Immersive Reader
lawyer [7]

The chromosomal mutation in the zygote can be traced back to "Chromosome 6 in the egg cell".

<u>Option: B</u>

<u>Explanation:</u>

In germ cells i.e. egg or sperm cells, the mutations in chromosome often happen during the meiosis phase. The number of chromosomes in egg cells or sperm cells must be haploid, so that diploid chromosomes form zygote on fertilization. Chromosome mutation in meiosis leads in an additional set of chromosomes or structural defects in the chromosome.

Chromosomal mutations are often caused by chemical agents or by mutagens. The homologous chromosomes are segregated from sister chromatids throughout cell division, any abnormality at this point allows the chromosomes to be unequally divided or not disjuncted, same is observed in the situation seen in egg cell chromosome 6.

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3 years ago
Why do land plants need to conserve water
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Answer: Some arid-climate plants are able to conserve water because of their reduced leaf size. Less leaf surface area results in reduced water loss through the epidermis. Small leaves have fewer stomata than larger leaves, and that adaptation also reduces water loss.

8 0
3 years ago
Which organ eliminates materials from the body by metabolism them rather than by excretion? which organ eliminates materials fro
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The organ is the LUNGS.
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