BIOLOGY NOW 2ND ED ACCESS CODE
2nd Edition
ISBN: 9780393664010
Author: HOUTMAN
Publisher: W.W.Norton+Co.Crse.Content Deliv
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Chapter 8, Problem 12TQ
Summary Introduction
The human genome contains 46 chromosomes (23 pairs) and they carry genetic information. The 22 pairs of chromosomes are known as autosomes, each pair in the autosomes carries the same genes or genetic information except the sex chromosomes such as X and Y chromosomes. The X and Y chromosomes are involved in the determination of sexual characteristics in human beings. Nearly 1,240 genes are located on sex chromosomes. The presence of these sex-linked genes on the X and Y chromosomes are known as X-linked and Y-linked, respectively. Around 1,180 genes out of 1,240 genes are found on the X chromosome.
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19. On the diagram below
a. Label the three pictures as: DNA; polypeptide; or RNA.
b. Label the arrows as: translation or transcription/RNA processing.
c. Add the following details to the diagram.
Promoter region
TATA box
Transcription start site
Transcription terminator
Intron (A,B,C,D)
Exons (1,2,3,4,5)
Splice sites
5' cap
5' UTR (untranslated region)
3' poly A tail
3' UTR (untranslated region)
Translational start (AUG)
Translational stop (UGA, UAG, or UAA)
N and C ends of polypeptide
0000
Match the letter labels in the figure below to the terms. Some letter
labels are not used.
MNNNNNNIN
M
C
B
A
M
D
F
E
H
K
G
8
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