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Ch. 23 - Developmental Genetics

Chapter 22, Problem 7

Does the maternal genotype contain zygotic genes?

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Hello, everyone. Here we have a question asking which of the following statements is true for Zai got jeans. So what ours, I got jeans. Psychotic genes are genes that are expressed in the zygote. The CEO is the single cell formed by the fusion of the sperm and the egg. During fertilization. These genes are not present in the gametes which are the sperm and the egg, but they are synthesized by the zygote after fertilization. So what do they do? They are responsible for controlling the early development of the embryo and play a critical role in determining the physical and functional characteristics of the offspring. So now that we know what psychotic genes are and what they do. Let's look at our options. A genes that are inherited from the father. This is incorrect. Psychotic genes are not inherited from either the mother or the father but are synthesized after fertilization. So A is incorrect B genes that are inherited for the mother. Like we said earlier, they are not inherited from either the mother or the father. So B is incorrect. See genes that are activated before zygote formation when we were going over what psychotic genes are we said that they are synthesized by the Z go after fertilization. So, c is incorrect de genes that are activated after fertilization in the Z I O. This one is correct. So our answer here is D Thank you for watching. Bye.