The two phases meiosis is divided into is Meiosis I and Meiosis II. Because Meiosis is not asexual reproduction is uses sexual reproduction by combining the chromosomes of the mother and father. Since each parent give 23 chromosomes to make the whole 46 a human needs, when the chromosomes come together they create tetrads. these are pairs of replicated chromosomes. There are 2 phases because the first phase separates the tetrads leaving the two sister chromatids. During Meiosis II, the sister chromatids are separated like in Mitosis. Overall, the reason that there are two phases is because the maternal and paternal gametes give replicated chromosomes to the zygote.

4 0

4 years ago

Do you think humans go through a simple life cycle? Explain your reasoning.

shtirl [24]

Answer:

Yes, we are born, reproduce, then die. Everything has that life cycle

Explanation:

5 0

3 years ago

Nefario was trying to determine the cause of a mysterious epidemic affecting fish in the gulf of New Mexico. He observes that th

Alex

Answer:

Hypothesis

Explanation:

A proposal that is given based on limited evidence using which a further point can be explained is considered as a hypothesis.
A hypothesis is an explanation that is proposed to explain why a particular phenomenon is occurring when there is no conclusive evidence for the cause.
In the given scenario, the observation made is that the fish have started falling ill since the number of protists in the area have increased, however this fact is not enough to conclude that the protists are the reason for causing illness to the fish but this could be one of the possible reasons and hence, the proposal given by Nefario is considered as a hypothesis.

8 0

4 years ago

Explain how a mutated DMD gene can result in the inability to walk​

Explain how a mutated DMD gene can result in the inability to walk