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AP Bio Ch. 15 Study Guide

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
Interactive question 15.4
With linked genes, are more or fewer parentals than recombinants produced?
a.
more parentals when genes travel together during meiosis
b.
more recombinants when genes are crossed over between nonsister chromatids of homologous chromosomes
c.
more recombinants when genes travel together during meiosis
d.
more parentals when genes are crossed over between nonsister chromatids of homologous chromosomes
 

 2. 
Interactive question 15.5
Which of the following is the correct gene linkage map?
a.
m     k       j        l
d.
j      m     l       k
b.
m     l      j       k
e.
j       k       m      l
c.
m     j      l       k
f.
j      m       k       l
 

 3. 
Interactive question 15.6 B
Which of the two organisms is likely to exhibit the more deleterious effects as a result of its chromosomal anomaly?
a.
organism with trisomy
b.
a triploid organism
 

Multiple Response
Identify one or more choices that best complete the statement or answer the question.
 

 4. 
Interactive question 15.1
Check the following phenotypes of the F2 generation from the punnet square.
 a.
2 red-eyed females
 e.
1 red-eyed male
 b.
1 white-eyed female
 f.
2 white-eyed females
 c.
1 white-eyed male
 g.
2 red-eyed males
 d.
2 white-eyed males
 h.
1 red-eyed female
 

 5. 
Interactive question 15.3 A
What are the phenotypes of offspring that are parental types?
 a.
tall, purple-flowered
 c.
dwarf, purple-flowered
 b.
tall, white-flowered
 d.
dwarf, white-flowered
 

 6. 
Interactive question 15.3 B
What are the phenotypes of offspring that are recombinants?
 a.
dwarf, purple-flowered
 c.
tall, white-flowered
 b.
dwarf, white-flowered
 d.
tall, purple-flowered
 

 7. 
Interactive question 15.7
What types of chromosome alterations would have occurred if daughter cells were found to have a gene sequence of A-B-C-O-P-Q-G-J-I-H on the first chromosome?
 a.
translocation
 c.
inversion
 b.
deletion
 d.
duplication
 

 8. 
Interactive question 15.8
Why do most sex chromosome aneuploidies have less deleterious effects than do autosomal aneuploidies?
 a.
extra X chromosomes are inactivated as Barr bodies
 b.
there are always two copies of sex chromosomes while there is only one functioning autosome
 c.
relatively few genes are located on the Y chromosome
 d.
animals with defective sex chromosomes do not have offspring
 

Matching
 
 
Interactive question 15.2
a.
XNY
d.
XNXn
b.
XnY
e.
XnXn
c.
XNXN
f.
XNXN  or XNXn
 

 9. 

 1
 

 10. 

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 11. 

 3
 

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 4
 

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 5
 

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 6
 

 15. 

 7
 
 
Interactive question 15.6 A
a.
organism with a trisomy
b.
triploid organism
 

 16. 

 has an extra copy of one chromosome
 

 17. 

 has an extra set of chromosomes
 



 
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