Answer:
A zygote can end up with one fewer chromosome than normal because one of the fertilizing gametes was missing a chromosome. This deletion, called nondisjunction, happened while the gamete was forming.
Explanation:
Answer:
The respiratory system as well as circulatory system (hormonal system) are involved in controlling the negative feedback of our body.
Explanation:
The respiratory system helps in controlling the negative feedback in such a way that if CO2 level increases in body the system acts in such a way so as to decrease its level in body . the system attains a normal level by increasing the blood circulation and increasing the breathing level forcing CO2 outside of our body.
in case of circulatory system, the blood has several hormones released from glands . the most common example is Insulin and Glucagon .
if a person is hypoglycemic then glucagon concentration increases and blood glucose concentration returns to normal and if a person has hyperglycemia then insulin level increases which in turn increases glucose uptake from body and body returns to normal level.
<span>S phase is the duplication of the cells genetic information, if this did not occur, when the cell divides into two cells, there would be no copy of this genetic information given to 1 out of the 2 cells.
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Answer:
All living organisms reproduce sexually
Explanation:
Not all living organism reproduce sexually. Plant and animal are also living organism but not all plants reproduces sexually. We have sexual and asexual reproduction in plant
Plant reproduce sexually through the fusion of male and female gametes followed by fertilization to produce an offspring. Offspring produce through sexual reproduction have both maternal and paternal makeup.
Asexual reproduction includes binary fission, budding, grafting. It is the production of the exact kind of the parent plant, it does not require fertilization and the parents and the progeny are 100% identical.
