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Bio 6D - Genetic variation in plants and animals (Chapter 14)

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 
 
bio6dglencoe-10_files/i0020000.jpg
 

 1. 
What is the relationship between individual I-1 and individual III-2 in Figure 14-1?
a.
grandmother-grandson
c.
grandfather-granddaughter
b.
mother-son
d.
great aunt-nephew
 

 2. 
What type of inheritance pattern does the trait represented by the shaded symbols in Figure 14-1 illustrate?
a.
incomplete dominance
c.
sex-linked
b.
multiple alleles
d.
codominance
 

 3. 
Refer to Figure 14-1. If individual III-2 marries a person with the same genotype as individual I-1, what is the chance that one of their children will be afflicted with hemophilia?
a.
25%
c.
0%
b.
75%
d.
50%
 

 4. 
The 23rd pair of chromosomes that differ in males and females are called _____.
a.
sex chromosomes
c.
autosomes
b.
multiple alleles
d.
polygenes
 

 5. 
The type of inheritance shown when a red-flowering plant is crossed with a white-flowering plant and only pink-flowering plants are produced is _____.
a.
polygenic inheritance
c.
inbreeding
b.
codominance
d.
incomplete dominance
 

 6. 
If a female fruit fly heterozygous for red eyes (XRXr) crossed with a white-eyed male (XrY), what percent of their offspring would have white eyes?
a.
0%
c.
75%
b.
25%
d.
50%
 

 7. 
In pea plants, inflated pods (R) are dominant to constricted pods (r). Which of the following crosses is a testcross?
a.
Rr x Rr
c.
RR x rr
b.
RR x RR
d.
RR x Rr
 

 8. 
Which of the bar graphs shown below represents what the phenotypic frequencies might be for polygenic inheritance?
a.
bio6dglencoe-10_files/i0100000.jpg
c.
bio6dglencoe-10_files/i0100001.jpg
b.
bio6dglencoe-10_files/i0100002.jpg
d.
bio6dglencoe-10_files/i0100003.jpg
 

 9. 
A cross between a white rooster and a black hen results in 100% blue Andalusian offspring. When two of these blue offspring are mated, the probable phenotypic ratio seen in their offspring would be _____.
a.
75% black, 25% white
c.
100% blue
b.
75% blue, 25% white
d.
25% black, 50% blue, 25% white
 

 10. 
A trait controlled by four alleles is said to have _____.
a.
hybridization
c.
homologous alleles
b.
multiple alleles
d.
autosomes
 



 
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