During oogenesis in an animal species with a haploid number of 6,...

Question

During oogenesis in an animal species with a haploid number of 6, one dyad undergoes nondisjunction during meiosis II. Following the second meiotic division, this dyad ends up intact in the ovum. How many chromosomes are present in (a) the mature ovum and (b) the second polar body? (c) Following fertilization by a normal sperm, what chromosome condition is created?

Accepted Answer

Hey everyone. Let's take a look at this question together. The following are the reproductive phases of both sperm a genesis and genesis except which so we know that when we're dealing with the reproductive phases of both Permata genesis and genesis, there are three phases and those three phases are multiplication maturation. And lastly we have differentiation, multiplication is our mitosis, cell division, maturation. Is that mitosis cell division and differentiation is where we determine whether they are male or female and they get that sex identity. And so, looking at these phases, we can see in our answer choices that we have one extra that is not found in both for mata genesis and genesis. And that is answer choice D. Blast relation. Because we know that blast relation refers to that early embryonic development which produces the blast Shula. And it is not found in both super meta genesis and genesis. So answer choice D. Is the only correct answer here. I hope you found this video to be helpful. Thank you and goodbye.

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