Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 19.1, Problem 1TC
Analysis of human chromosome 2 revealed that it contains both a functional centromere and the remnants of a second one. What does this finding suggest about the evolutionary origin of chromosome 2?
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Chapter 19 Solutions
Biology
Ch. 19.1 - Analysis of human chromosome 2 revealed that it...Ch. 19.1 - Origin of a Killer Analysis of nucleotide...Ch. 19.1 - explain why scientific names are necessary?Ch. 19.1 - describe the type of similarities that...Ch. 19.1 - Prob. 3CYLCh. 19.2 - Prob. 1TCCh. 19.2 - Prob. 1CYLCh. 19.2 - explain how scientists discovered that prokaryotes...Ch. 19.3 - Prob. 1HYEWCh. 19.3 - Prob. 1CYL
Ch. 19.3 - Prob. 2CYLCh. 19.4 - Prob. 1CYLCh. 19.4 - Prob. 2CYLCh. 19.4 - Prob. 1CTCh. 19 - Prob. 1MCCh. 19 - To be informative for reconstructing the phylogeny...Ch. 19 - Prob. 3MCCh. 19 - In modern systematics, classifications are...Ch. 19 - Which of the following includes all the domains...Ch. 19 - Prob. 1FIBCh. 19 - Prob. 2FIBCh. 19 - In Linnaean classification, the eight major...Ch. 19 - Systematists determine the evolutionary...Ch. 19 - Prob. 5FIBCh. 19 - The number of named species is about ________, but...Ch. 19 - What contributions did Linnaeus and Darwin make to...Ch. 19 - Prob. 2RQCh. 19 - What techniques might you use to determine whether...Ch. 19 - Only a small fraction of the total number of...Ch. 19 - In England, daddy longlegs refers to a long-legged...Ch. 19 - Why are species designations of asexually...Ch. 19 - Applying the Concepts The pressures created by...Ch. 19 - Applying the Concepts 2. During major floods, only...Ch. 19 - Consider the following list of groups: (1)...
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- Analyzing Karyotypes 1. Originally, karyotypic analysis relied only on size and centromere placement to identify chromosomes. Because many chromosomes are similar in size and centromere placement, the identification of individual chromosomes was difficult, and chromosomes were placed into eight groups, identified by the letters A to G. Today, each human chromosome can be readily identified. a. What technical advances led to this improvement in chromosome identification? b. List two ways this improvement can be implemented. c. What clinical information does a karyotype provide?arrow_forwardVariations in Chromosome NumberAneuploidy Describe the process of nondisjunction and explain when it takes place during cell division.arrow_forwardWhat is the approximate location of the centromereon human chromosome 7?arrow_forward
- It is also note that Chimpanzee has a chromosomal complement of 2N = 48, whereas human has 2N = 46. Interestingly, chromosomal banding patterns have revealed that the chromosome 12 and 13 of chimp show homology with human chromosome 2 (see figure for the alignment of human and chimp banding patterns). This is a good example of chromosomal aberration in evolution. What type of chromosomal rearrangement is likely explained the evolution of human chromosome 2 from the two chromosomes of chimpanzee? A. Translocation B. Duplication C. Inversion D. Deletionarrow_forwardThe genes that codes for the creation of certain blood groups are located on chromosome "XGp22.3", chromosome "12p12.3", chromosome "2q14.3", and so on. What is this chromosome terminology? What does it mean?arrow_forwardWhat are homologous chromosomes? Which are the human cells that do not have homologous chromosomes?arrow_forward
- The size of one copy of the human genome is approximately 3 billion base pairs, and it contains about 27,000 genes organized into 23 chromosomes. Human chromosomes vary in size. What would you predict is the size of the average chromosome? Assuming that genes are spread evenly among chromosomes, how many genes does an average human chromosome contain?arrow_forwardWhat type of chromosome (metacentric, submetacentric, acrocentric, or telocentric) is chromosome 1? What about chromosome 4?arrow_forwardWhat is the specific base sequence found in human telomeres, and how does the base sequence contained in the telomeric regions of chromosomes differ from that found elsewhere in the chromosome? (Please indicate both the base sequence and the 5’/3’ polarity.)arrow_forward
- Why is chromosome 21 the smallest and not chromosome 22? considering that a karyogram is arranged from largest to smallestarrow_forwarda. What letters are used to represent the short andlong arms of human chromosomes?b. Sketch a schematic diagram of a hypothetical chromosome 3 that has 3 regions with 2 bands each on the short arm and 5 regions with 3 bands each onthe long arm. Label the arms, regions, and bandsand indicate a gene at position 3p32.arrow_forwardIn many organisms, including humans, chromosomes occur in homologous pairs; where does each member of the pair originate?arrow_forward
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