Oogenesis produces 1 viable cell and spermatogenesis produces 4 viable cells. Details about gametogenesis can be found below.
<h3>What is gametogenesis?</h3>
Gametogenesis is the process by which gametes are produced. Gametogenesis consists of two processes namely;
- Oogenesis
- OogenesisSpermatogenesis
Oogenesis is the formation and development of an oocyte or ovum while spermatogenesis is the process of sperm production in the testes.
Oogenesis results in the formation of only one viable egg cell while spermatogenesis results in the formation of four spermatids.
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The unusually high frequency of "blue skin" in the area is an example of <u>genetic drift</u>.
<u>Explanation:</u>
It is a shift in the occurrence of an established gene variant within a population due to spontaneous organism screening. The offspring alleles are a composite of those in the parents and opportunity has a role to play in deciding whether or not a given person persists and reproduces.
The bottleneck impact is an interesting instance of genetic drift which take place when the population size is drastically reduced. Occurrences like natural disasters such as earthquakes, floods, fires can destroy a city, eliminate most people and leave a tiny, random assortment of survivors remaining.
Answer:
The correct answer is option A.
Explanation:
The lymph node is a small bean-like structure that filters substances that move through the lymphatic pathway with the lymphatic fluid. Lymph nodes are present on different site in the human body. They contain white blood cells that soldiers of the human immune system and fight with infection and pathogens.
Immune system cell that is B and T cells both, not just located in the cortex only but medulla of lymph nodes.
Thus, the correct answer is option A.
<h2>Duplicated Chromosome </h2>
Explanation:
- <em>Chromatid, D-loop is right answer</em>
- A duplicated chromosome contains two represented <em>double strand DNA particles,</em> the chromatids, that are joined at their centromere
- <em>A haploid cell stays in reality n after replication, however duplicates from c to 2c</em>
- <em> Each chromosome connected of two chromatids
</em>
- <em>The two chromatids</em>, each containing an identical DNA molecule are at first appended along their lengths by protein buildings called <em>cohesion</em>.<em>this connection is known as sister chromatid cohesion.</em>
