BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 12, Problem 4SA
Meiosis ________.
| a. occurs only in germ cells of animals |
| b. supports growth and tissue repair in multicelled species |
| c. gives rise to genetic diversity among offspring |
| d. is part of the life cycle of all cells. |
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Students have asked these similar questions
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 meiosis
Gametogenesis requires the conclusion of meiosis II. When does this occur in females?
a. During fetal development
b. At the onset of puberty
c. After fertilization
d. After implantation
Meiosis is a necessary part of sexual reproduction because it_____ . a. divides two nuclei into four new nuclei b. reduces the chromosome number for gametes c. gives rise to new alleles
Chapter 12 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 12 - One evolutionary advantage of sexual over asexual...Ch. 12 - Alternative forms of the same gene are called...Ch. 12 - Meiosis is a necessary part of sexual reproduction...Ch. 12 - Meiosis ________. a. occurs only in germ cells of...Ch. 12 - Sexual reproduction in animals requires ________ ....Ch. 12 - Dogs have a diploid chromosome number of 78. How...Ch. 12 - Prob. 7SACh. 12 - Prob. 8SACh. 12 - Crossing over mixes up _______ . a. chromosomes c....Ch. 12 - Crossing over happens during which phase of...
Ch. 12 - _________ contributes to variation in traits among...Ch. 12 - Which of the following is one of the very...Ch. 12 - Match each term with its description....Ch. 12 - In your own words, explain why sexual reproduction...Ch. 12 - Make a simple sketch of meiosis in a diploid germ...Ch. 12 - The diploid chromosome number for the body cells...
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- Which type of life cycle has both a haploid and diploid multicellular stage? a. an asexual life cycle b. diploid-dominant c. haploid-dominant d. alternation of generationsarrow_forwardMeiosis explains whya. you inherited half of your DNA from each of your parents.b. the sister chromatids in a chromosome are identical to each other.c. each of your somatic cells contains the same DNA.d. zygotes contain half as much DNA as somatic cells.arrow_forwardWhich statement about meiosis (in humans) is FALSE? Select one: a. It reduces the amount of genetic material (chromosomes) by half b. It is part of the process of sexual reproduction c. The cells it produces are identical to each other d. It produces haploid gametes e. It occurs only in germline cells of the reproductive organsarrow_forward
- How does the production of sperm differ from the production of eggs? a. Sperm production involves meiosis, whereas egg production involves only mitosis. b. Meiosis during sperm production produces four sperm cells, whereas meiosis during egg production produces only one functional egg cell. c. Sperm are haploid, whereas eggs are diploid. d. Sperm production begins during fetal development, whereas the meiotic process that begins egg production doesn’t begin until pubertyarrow_forwardEgg and sperm cells are... A. Gametes B. Diploid C. Somatic cells D. Zygotesarrow_forwardIn animals, a key difference between spermatogenesis andoogenesis is thata. only oogenesis involves meiosis.b. only spermatogenesis involves meiosis.c. spermatogenesis produces four sperm, whereas oogenesisproduces only one egg cell.d. None of the above describes a difference between the twoprocesses.arrow_forward
- A preembryo has:- a. A neural tube. b. A heart bulge. c. A cytotrophoblast. d. A coelom. e. decidual cellsarrow_forwardWhich of the following statements is/are true? A. Spermatogenesis is an example of asymmetric cell division. B. The formation of a mature egg occurs through symmetric cell division. C. Spermatogenesis and oogenesis are both examples of asymmetric cell division. D. Spermatogenesis involves only symmetric cell division whereas oogenesis involves asymmetric cell division.arrow_forwardWhy is a second polar body expelled after fertilisation? a) To remove excess cytoplasm b) Because the oocyte must reactivate the incomplete meiosis before fusing with the sperm c) Before fusion with the sperm it must complete mitosis d) The fertilised oocyte is not a haploid cell until it expels the sperms mitochondriaarrow_forward
- The..........is a hollow ball of cells that develops from the morula. a) Blastocyst b) Oviduct c) Ovary d) Chorionarrow_forwardWhich statement does not accurately describe what occurs during the process of meiosis? A) All stages of meiosis follow DNA replication. B) Meiosis produces gametes with the haploid chromosome number. C) Meiosis produces four identical gametes, either egg or sperm. D) Genetic variation among sexually reproducing organisms is enhanced by meiosis. Not Gradedarrow_forwardWhich statement below best describes the overall function of meiosis 2? A. Separates homologous chromosomes prior to cell division B. Separate sister chromatids prior to cell division C. Independently arranges homologous chromosomesarrow_forward
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