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dogs have a diploid chromosome number of 78. How
many chromosomes do their gametes have?
a. 39 c. 156
b. 78 d. 234
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- Which event leads to a diploid cell in a life cycle? a. meiosis b. fertilization c. alternation of generations d. mutationWhich statement is true of meiosis? 1)two identical cells in both divisions 2)the first division produces haploid cells and the second produces diploid cells 3)the first division produces diploid cells and the second produces haploid cells 4) the products of both meiotic divisions are haploidUse the pedigree to answer the question. How is this trait inherited? A. The trait is epistatic. B. The trait is X-linked. C. The trait is dominant. D. The trait is recessive.
- How are mitosis and meiosis alike? How are they different? Write a statement to compare and contrast mitosis and meiosis.If the liver cells of an animal have 48 chromosomes, the sperm cells would have how many chromosomes? Question 5 options: a) 24 b) Twice the diploid number c) Half the haploid number d) 48When does DNA replication occur during meiosis? a. during telophase b. during prophase I c. during anaphase and telophase d. during interphase before meiosis I begins
- How is gametes form through meiosis.How many chromosomes are in a human gamete? 43 46 23 26Give explanation X and Y chromosomes are not homologs, but in meiosis they do pair and segregate in XY organisms to create 50% haploid gametes with an X chromosome and 50% haploid gametes with a Y chromosome. How is pairing achieved? a. Since all other homologous chromosomes pair, the remaining two chromosomes pair by default. b Pairing proteins are capable of binding to different genes on the X and Y chromosomes, which allows them to pair. c. None of the statements is correct. d. They don't actually pair. Random segregation generally ensures the X and Y chromosomes separate. e.Pseudoautosomal regions that are homologous exist at the tips of both the X and Y chromosomes, and they allow pairing.
- A) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of meiosis II haploid or diploid? C) Are the chromosomes of the four final meiotic products replicated or nonreplicated?What is the main difference between autopolyploid and allopolyploid? a. the number of chromosomes b. the functionality of the chromosomes c. the source of the extra chromosomes d. the number of mutations in the extra chromosomesWhy are males more prone to having x-linked recessive disorders?a. Because the y chromosome is smaller than the x chromosome. b. Because the y chromosome is weaker than the X chromosome c. Because there is a chromosome that will inhibit the eexpression of the defective gene. d. Because there is no other chromosome that will mask the other defective chromosome
