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answer exhaustively. Why is it important for the sperm in internally fertilizing animals to undergo acrosome reaction at the right time?
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Solved in 2 steps
- Direction: Explain the following in paragraph form consists of at least five sentences for each question. Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to hermaphroditism?Please answer fast compare and contrast gametogenesis in human males and females. How does this ensure that human genotype is maintained in normal humans. What possible variation can occur and what possible abnormalities will result from such?Discuss and compare the source (mechanism) and types of increased mutations in older mother oocytes versus older father sperm (ch 4 and ch 7.) (Diagrams may be helpful if needed to convey your thoughts
- Question:- Describe or demonstrate the mechanism of sex determination in humans, grasshoppers, moths,, fruit flies and bees.Type answer with explanation and conclusion? Summarise the key developmental changes that occur from the point that the embryo is formed up to the end of the 1st trimester of pregnancy when the embryo is considered a foetus ?Why is it important for the sperm in internally fertilizing animals to undergo acrosome reaction at the right time?
- Direction: Explain the following in paragraph form consists of at least five sentences for each question. 1.What might be a disadvantage to temperature-dependent sex determination? 2.Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to hermaphroditism?Solve the problem using punnet square. Problem: A spermatogonium has a genotype of AaBbccDdEeFf. a. How many different types of spermatozoa can be produced? b. What is the probability of an ovum being fertilized by a sperm cell with aBcDeF or ABcdEF allele combination?Give typing answer with explanation and conclusion Please answer these questions 150 words only 1) Describe the interactions between genes and the environment in the sex determination of some reptiles; explain their relevance to human sex determination. 2) How is the timing of gamete formation in females different than that in males?
- Explain the chromosomal and genetic control of sex determination in mammals. Clearly establish the difference between the primary and the secondary phases.Mammalian sperm don’t live very long after ejaculation.Therefore, for a rhino cow to become pregnant, the sperm must be placed in her vagina or uterus, whether by mating or by artificial insemination, at about the same time that ovulation occurs.The simplest way to ensure correct timing is to induce ovulation and have mating or artificial insemination the same day. How might ovulation be induced, in rhinos or in other mammals?Answer the ff. What steps in male reproductive physiology do you think might be possibly blocked pharmacologically in order to produce such a contraceptive for males? What are the negative effects of candidate drugs currently proposed for the male hormonal contraceptive? What alternative ways are considered that will reduce these effects?
