Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 8, Problem 10SQ
Summary Introduction
To determine:
The diploid body (somatic) cell of fruit fly contains eight chromosomes. How many different combinations of chromosomes are possible in its gametes.
Introduction:
Meiosis is a reduction cell division in which cell divides into four daughter cells. The daughter cells receive a haploid number of chromosomes hence, meiosis is called as reductional division. During meiosis, crossing over takes place which results in the variation of daughter cells. Due to this crossing over, different combination of chromosomes are formed.
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A diploid body (somatic) cell from a fruit fly contains eight chromosomes. This means that __________ different combinations of chromosomes are possible in its gametes.
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If an intestinal cell in a dog contains 78 chromosomes, a dog sperm cell would contain __________ chromosomes.
Chapter 8 Solutions
Campbell Essential Biology (7th Edition)
Ch. 8 - Which of the following is not a function of...Ch. 8 - In what sense are the daughter cells produced by...Ch. 8 - Why is it hard to observe individual chromosomes...Ch. 8 - A biochemist measures the amount of DNA in cells...Ch. 8 - What phases of mitosis are opposite in terms of...Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a dog contains 78...Ch. 8 - A micrograph of a dividing cell from a mouse shows...Ch. 8 - Prob. 9SQCh. 8 - Prob. 10SQ
Ch. 8 - Although nondisjunction is a random event, there...Ch. 8 - Prob. 12IMTCh. 8 - Prob. 13IMTCh. 8 - For each statement, identify which major theme is...Ch. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - You prepare a slide with a thin slice of an onion...Ch. 8 - Interpreting Data The graph shows the incidence of...Ch. 8 - If an endangered species can reproduce by...Ch. 8 - Every year, about a million Americans are...Ch. 8 - The practice of buying and selling gametes,...Ch. 8 - Prob. 21BS
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- The pairing up of duplicated homologous chromosomes during prophase I of meiosis is called ____ and results in the formation of ______ chromatids consisting of fourarrow_forwardIncluding the sex chromosomes, the chromosome number of a normal human cell is ___________ and the chromosome number of this HeLa cell is (look at picture). (Hint: Chromosome number is different from total chromosome count.)arrow_forwardThe process of meiosis occurs during the cell cycle production and results in four unique diploid four identical diploid cells four unique haploid cells four identical haploid cells . To maintain the correct number of chromosomes in offspring, male and female gametes contain the same number half of the number twice the number of chromosomes as somatic cells. During fertilization, gametes fuse to form a diploid haplid cell called a zygote.arrow_forward
- Sex chromosome aneuploidy is usually welltolerated because only one X chromosomeremains __________ and because the Y chromosomehas few genes.arrow_forwardGenes that are present on one sex chromosome but not theother are called_________ .arrow_forwardBelow is my drawing of a female oocyte in anaphase I of meiosis. Use this figure to answer the following questions. A W 8 S B How many total chromatids are in this cell? Rarrow_forward
- This cell is in (phase?) of (Mitosis / Meiosis 2 / Meiosis 1)?arrow_forwardAnother species contains 8 chromosomes in the sperm cell. Assuming that his primordial sex cell has to undergo spermatogenesis, illustrate what happen to the chromosomes during anaphase of mitosis and anaphase I of meiosis I.arrow_forwardFruit flies (Drosophila melanogaster) are a common model organism in genetics labs. A somatic cell in D. melanogaster has 2n = 8. How many chromosomes will a D. melanogaster female gamete contain?arrow_forward
- Gametes of an alien fruit fly (found by Dr. Pat McGroyn on Uranus) have 12 chromosomes. They go through meiosis just like Earth-dwelling fruit flies. How many chromosomes does a Uranal fruit fly cell in their eye have? O Twenty four O Six O Two ONone, fruit flies do not have cells O Twelvearrow_forwardAneuploidy is caused by ______, the failureof two homologous chromosomes to separate in meiosis.arrow_forwardThe cell of a diploid organism observed under a microscope looked like this: onde Assuming no other chromosomes are present within the cell and that the two chromosomes depicted are not homologues, identify the stage of meiosis and/or mitosis in this cell.arrow_forward
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