(a)
To draw:
Four rounds of mitosis of the stem cell.
Concept introduction:
Spermatogenesis is the process where sperm cells are produced through the meiosis of the spermatogonium. Stem cells are the undifferentiated cells which can give rise to every type of cell it is found with and in the process it also gives rise to another stem cell.
(b)
To draw:
Single mitosis followed by meiosis of a spermatogonium.
Concept introduction:
Spermatogenesis is the process where sperm cells are produced through the meiosis of the spermatogonium. Stem cells are the undifferentiated cells which can give rise to every type of cell it is found with and in the process it also gives rise to another stem cell.
(c)
To determine:
What would happen if the stem cell divides like the spermatogonium.
Concept introduction:
Spermatogenesis is the process where sperm cells are produced through the meiosis of the spermatogonium. Stem cells are the undifferentiated cells which can give rise to every type of cell it is found with and in the process it also gives rise to another stem cell.
Want to see the full answer?
Check out a sample textbook solutionChapter 36 Solutions
Campbell Biology in Focus (2nd Edition)
- Human fertilization involves the fusion of two haploid gametes, producing a zygote containing (a) 23 chromosomes. (b) 46 chromosomes. (c) the normal haploid number of chromosomes. (d) 46 pairs of chromosomes.arrow_forwardA diploid cell contains three pairs of homologous chromosomes designated C1 and· C2, M1 and M2, and S1 and S2; no ·crossing over occurs. What possible combinations of chromosomes will be present in (a) daughter cells following mitosis (b) the first meiotic metaphase (c) haploid cells following both divisions of meiosis? For your answer give the number, show your work and clearly designate if the response is for part(a), (b), or (c)arrow_forwardMeiosis II is similar to mitosis in that(A) sister chromatids separate during anaphase.(B) DNA replicates before the division.(C) the daughter cells are diploid.(D) homologous chromosomes synapsearrow_forward
- Which statements are true about meiosis? **Select 2 choice(s)** a) It increases the number of chromosomes. b)It duplicates the number of chromosomes by 2. c)It occurs in an organism's reproductive organs. d)It reduces the number of chromosomes by half. e)It occurs when a single haploid cell divides twice. f)It results in the formation of multiple diploid cells. Please I need a surely answer and a quicker responsearrow_forwardSomatic cells of chimpanzees contain 48 chromosomes.How many chromatids and chromosomes are present at: (a) anaphase of mitosis, (b) anaphase I ofmeiosis, (c) anaphase II of meiosis, (d) G1 priorto mitosis, (e) G2 prior to mitosis, (f) G1 prior tomeiosis I, and (g) prophase of meiosis I?How many chromatids or chromosomes are presentin: (h) an oogonial cell prior to S phase, (i) a spermatid, (j) a primary oocyte arrested prior to ovulation,(k) a secondary oocyte arrested prior to fertilization,(l) a second polar body, and (m) a chimpanzee sperm?arrow_forwardIn a comparison of the stages of meiosis to the stages of mitosis, which stages are unique ... to meiosis and which stages have the same events in both meiosis and mitosis?arrow_forward
- Oogenesis is the process of female gamete (ovum or egg) production in animals. Spermatogenesis is the process of male gamete (sperm) production in animals. Although both processes produce gamete(s), there are distinct similarities and differences between the two. Compare and contrast oogenesis to spermatogenesis by drawing a diagram showing the two processes. In your hand-drawn diagrams, be sure to include when the processes of mitosis, meiosis I and meiosis II are occurring identify each germ cell structure and its ploidy highlight 4 differences between the two processesarrow_forwardFill in the blanks *Items (1) to (23)arrow_forwardExamine the diagram below and answer the following questions. a) What specific stage of meiosis is this cell in? b) Exactly how many chromosomes will be in each of the 4 resulting gametes?arrow_forward
- In humans, sexual reproduction that produces an embryo, which then develops into a fetus, requires: a. Neither mitosis or meiosis b. Mitosis c. Both mitosis and meiosisarrow_forwardFor which of the following is the number the same in humanmales and females?(A) interruptions in meiotic divisions(B) functional gametes produced by meiosis(C) meiotic divisions required to produce each gamete(D) different cell types produced by meiosisarrow_forwardRainbow trout go through a unique genetic reproductive process. Female eggs are diploid, while male sperm are haploid. In the wild, when the sperm fertilizes an egg, the extra set of chromosomes is eliminated, resulting in a diploid offspring.The process that produces the sperm and egg, and the process the offspring use to grow into adults are, respectively, Select one: a. Process to produce sperm and egg Process used for growth of the offspring Mitosis Cytokinesis b. Process to produce sperm and egg Process used for growth of the offspring Mitosis Meiosis c. Process to produce sperm and egg Process used for growth of the offspring Meiosis Cytokinesis d. Process to produce sperm and egg Process used for growth of the offspring Meiosis Mitosisarrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning