EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
3rd Edition
ISBN: 9781319030810
Author: PHELAN
Publisher: YUZU
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Chapter 6, Problem 15MC
Summary Introduction
Introduction:
A karyotype is a useful diagnostic tool to assess fetus’s development to know whether it has an abnormality in the number of chromosomes or in their structure. And because the test shows all of the chromosomes, even the sex chromosomes, it also reveals the sex of the fetus.
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A cell has a diploid number of 12 (2n=24)a) how many chromosomes are present in a daughter cell after meiosis I?b) how many chromatids are present in a daughter cell after meiosis I?c) how many chromosomes are present in a daughter cell after meiosis II?d) how many chromatids are present in a daughter cell after meiosis II?e) how many chromosomes are present in a daughter cell after mitosis?
In a diploid cell, two homologous chromosomes are:
A) similar , but from two different species
B) mirror images of each other
C) similar, but from two different people
D) identical to each other
E) copies of each other
Chromatids are separated from each other.
a) The statement is true for meiosis II only.
b) The statement is true for mitosis only.
c) The statement is true for mitosis and meiosis I.
d) The statement is true for mitosis and meiosis II.
e) The statement is true for meiosis I only.
Chapter 6 Solutions
EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
Ch. 6 - Prob. 1SACh. 6 - Prob. 2SACh. 6 - Prob. 3SACh. 6 - Prob. 4SACh. 6 - Prob. 5SACh. 6 - Prob. 6SACh. 6 - Prob. 7SACh. 6 - Prob. 8SACh. 6 - Prob. 9SACh. 6 - Prob. 10SA
Ch. 6 - Prob. 11SACh. 6 - Prob. 12SACh. 6 - Prob. 13SACh. 6 - Prob. 14SACh. 6 - Prob. 15SACh. 6 - Prob. 16SACh. 6 - Prob. 17SACh. 6 - Prob. 1MCCh. 6 - Prob. 2MCCh. 6 - Prob. 3MCCh. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - Prob. 6MCCh. 6 - Prob. 7MCCh. 6 - Prob. 8MCCh. 6 - Prob. 9MCCh. 6 - Prob. 10MCCh. 6 - Prob. 11MCCh. 6 - Prob. 12MCCh. 6 - Prob. 13MCCh. 6 - Prob. 14MCCh. 6 - Prob. 15MCCh. 6 - Prob. 16MCCh. 6 - Prob. 17MC
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- Which of the following would have the shortest p arm of the chromosome? A) acrocentic B) metacentric C) submetacentric D) all of the answers would be equalarrow_forwardA. Aneuploidy refers to the loss or gain a chromosome part. B. Polyploid cells have extra chromosome sets. A) Both statement is correct B) Both statement is incorrect C) First statement is correct, Second is incorrect D) First statement is incorrect, Second is correctarrow_forward1) What is the size of the following single-stranded piece of DNA? ATCGTGTGCT A) 10 b B) 20 bp C) 20 b 2) Mitosis is to cytokinesis as Meiosis is to: A) Cell plate B) Interkinesis C) Metaphase-1 3) During cell division, DNA synthesis and replication does not take place at the beginning of: A) Mitosis B) Meiosis-II 4) What is the size of the following single-stranded piece of RNA? AUCGUGUGCU A) 10 bp B) 10 b| C) 20 bparrow_forward
- Genetic Recombination during meiosis creates species a) mutation b) variety c) tension d) cytokinesis _within a particulararrow_forward4) What is occurring during the Anaphase stage of mitosis, such as is shown in the figure to the right? A) The DNA is being replicated. B) The homologous chromosomes are separating. C) Sister chromatids are being pulled to opposite poles. D) A cleavage furrow is forming to divide the cell. Inid parents made gametes usingarrow_forward1) A human cell containing 22 autosomes and a Y chromosome is A) a sperm. B) an egg. C) a zygote. D) a somatic cell of a male. E) a somatic cell of a female.arrow_forward
- Which of the following are differences between mitosis and meiosis I? CHOOSE ALL THAT APPLY. A) Crossing over occurs during meiosis I but not during mitosis B) DNA replication takes place prior to mitosis, but not before meiosis I C) Sister chromatids separate in mitosis, and homologs separate in meiosis I D) Only meiosis I results in daughter cells that contain identical genetic information E) Meiosis I results in two daughter cells, while mitosis results in four daughter cellsarrow_forwardif a cat has 38 chromosomes, how many chromosomes are in the following cells? a) hair b) claw c) sperm d) egg e) tonguearrow_forwardWhat is the major difference between mitosis and meiosis I in a diploid organism? A) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis I. B) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis II. C) DNA replication takes place prior to mitosis, but not before meiosis I. D) Only meiosis I results in daughter cells that contain identical genetic information.arrow_forward
- Which sentence does not describe a way in which genetic variation increases during meiosis? A) Random segregation of homologous chromosomes during metaphase/anaphase I. B) Random mutation of the genetic code during DNA replication. C) Random segregation of chromatids during metaphase/anaphase II. D) Crossing-over of homologous chromosomes, to exchange parts of their arms. 2. Choose the correct word to describe the physical, biochemical and behavioural characteristics of an individual, caused by how their genes interact with the environment? A) Morphology B) Genotype C) Physiology D) Phenotype 3. 0000 A) 25 % B) 50% C) 75 % D) 100 % 0000 Two individuals who are heterozygous for gene Y have a child. What is the probability that their child will be heterozygous for the gene? 0000arrow_forwardHuman cells normally have 46 chromosomes. For each of the following stages, state the number of chromosomes present in the particular cell.a) metaphase of mitosisb) metaphase I of meiosis c) telophase of mitosisd) telophase I of meiosis e) telophase II of meiosis (Remember that a pair of attached chromatids count as one chromosome.)arrow_forwardA researcher is studying the cytology of an organism with endopolyploidy. What will she expect to see? A) Most cell types will be diploid, but one cell type will contain extra copies of all the chromosomes. O B) Aneuploid cells will occasionally arise, but will be quickly eradicated. C) Most cell types will be euploid, but some will be aneuploid. D) All cell types will be polyploid, but the number of copies will vary.arrow_forward
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