Biochemistry: Concepts and Connections (2nd Edition)
2nd Edition
ISBN: 9780134641621
Author: Dean R. Appling, Spencer J. Anthony-Cahill, Christopher K. Mathews
Publisher: PEARSON
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Chapter 4, Problem 21P
What DNA sequence feature is required for a G-quadruplex to form?
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Chapter 4 Solutions
Biochemistry: Concepts and Connections (2nd Edition)
Ch. 4 - Prob. 1PCh. 4 - What is the difference between a nucleoside...Ch. 4 - pppApCpCpupApGpApu-OH a. Using the straight-chain...Ch. 4 - Shown is a representation of a molecule being...Ch. 4 - Base analysis of DNA from maize (com) shows it to...Ch. 4 - Using the pKa data in Table 4.1 and the...Ch. 4 - For some DNAs, it is possible to separate the two...Ch. 4 - Refer to Figure 4.15, which presents the...Ch. 4 - Suppose that you centrifuged a transfer RNA...Ch. 4 - Predict the structure of a cruciform that could be...
Ch. 4 - DNA from a newly discovered virus was purified,...Ch. 4 - Would you expect Neurospora crassa DNA to have a...Ch. 4 - A circular double-stranded DNA molecule contains...Ch. 4 - The gel electrophoresis pattern in Figure 4.23 was...Ch. 4 - 15. DNA polymerase requires both a template, to be...Ch. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - a. What two enthalpic factors stabilize DNA in...Ch. 4 - 19.
a. The plasmid pBR322 (4362 base pairs) was...Ch. 4 - Prob. 20PCh. 4 - What DNA sequence feature is required for a...
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- With detailed accounts of their various forms, explain any three of the following chromosomal aberrations: a) Deletions b) Duplications c) Translocations d)Inversionarrow_forwardA specific human individual with a male sex has the same sex chromosome complement as a metafemale Drosophila fly. Both individuals have a diploid set of autosomes.i) What is the sex chromosome complement of these two individuals? ii) If these individuals were produced from a fertilization event involving an abnormal egg and abnormal sperm cell, provide the genetic make-up of the two gametes? Clearly indicate the male and female gametes.arrow_forwardArugue the pros and cons having a nucleoid.arrow_forward
- What is a homologous pair (also called a tetrad)?arrow_forwardWhat is the nucleous for?arrow_forwardHuman adult hemoglobin is a tetramer containing two alpha (a) and two beta (b) polypeptide chains. The a gene cluster on chromosome 16 and the b gene cluster on chromosome 11 share amino acid similarities such that 61 of the amino acids of the a@globin polypeptide (141 amino acids long) are shared in identical sequence with the b@globin polypeptide (146 amino acids long). How might one explain the existence of two polypeptides with partially shared function and structure on two different chromosomes?arrow_forward
- In a human karyotype, chromosomes are arranged in 23 pairs. If one of the autosomal pairs is examined, which of the following characteristics will the two chromosomes of the pair have in common? a) loci and staining pattern b) length and DNA sequence c) X-like shape and alignment on the metaphase plate d) alleles and centromere positionarrow_forwarda) Are the genes linked? Please explain SPECIFICALLY how you can distinguish between linked and unlinked genes in this instance. b) If the two genes are linked, calculate the % recombination between ser and thr. Show the formula used, as well as all of your calculations. c) Draw a single map illustrating the arrangement of the two genes on the chromosome with respect to each other and to the centromere of the chromosome. Make sure to map ALL three distances.arrow_forwardWhat genetic process is occurring in a puff of a polytene chromosome?arrow_forward
- An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B C D E F A • B C V W X R ST • U D E F R ST • U V W X Q. Explain why the fertility of this individual is likely to be less than the fertility of an individual without a translocation.arrow_forwardWhy is a chromosomal fragment without a centromeresubsequently lost and degraded?arrow_forwardWhat letters are used to represent the short andlong arms of human chromosomes?arrow_forward
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