Question 1

Skin color in humans is a(n)____________________ trait.

Accepted Answer

The answer of Skin color in humans is a(n)____________________ trait....

Question 2

Animal models such as the ____________________ and ____________________ are being studied to identify single genes that control aspects of learning,memory,and spatial perception.

Accepted Answer

The answer of Animal models such as the ____________________ and...

Question 3

Summarize the results of performing genome-wide searches for genes that control obesity.

Accepted Answer

The answer of Summarize the results of performing genome-wide searches...

Question 4

If two genes control a trait and each has a dominant and a recessive allele,there are ____ phenotypic classes in the F2 generation.

Accepted Answer

A)  three 
B)  five 
C)  nine 
D)  sixteen 
E)  thirty-two

Question 5

Using today's genetic technology,it is possible to select ____________________ for specific traits.

Accepted Answer

The answer of Using today's genetic technology,it is possible to...

Question 6

One of the important assumptions made during the study of heritability in twins is that monozygotic twins share all their ____________________ and their ____________________.

Accepted Answer

The answer of One of the important assumptions made during...

Question 7

The correlation coefficient for unrelated people is ____________________.

Accepted Answer

The answer of The correlation coefficient for unrelated people is...

Question 8

The heritability of a trait is the ____.

Accepted Answer

A)  sum of all phenotypic variation in a population 
B)  average amount of genetic variation in each individual 
C)  proportion of phenotypic variation that is caused by different genotypes 
D)  absolute measurement of genotypic variation in a population 
E)  proportion of phenotypic variation that is caused by the environment

Question 9

Define and give examples of discontinuous and continuous phenotypic variation and explain how understanding of these two concepts resulted in important advances in human genetics.

Accepted Answer

The answer of Define and give examples of discontinuous and...

Question 10

Most evidence indicates that skin color is controlled by ____ gene pair(s).

Accepted Answer

A)  one 
B)  two to three 
C)  ten 
D)  five to seven 
E)  fifteen

Question 11

The concept of ____ explains why children of parents who are at the extreme ends of a normal (bell-curve)distribution for a phenotype are usually closer to the population average for the phenotype.

Accepted Answer

A)  correlation coefficient 
B)  regression to the mean 
C)  multifactorial differences 
D)  concordance 
E)  epigenetics

Question 12

According to Wilhelm Stern's method of measurement,a ten-year-old child who is able to perform the mental tasks of a ten-year-old (but not of an eleven-year old)has an IQ of ____.

Accepted Answer

A)  80 
B)  90 
C)  100 
D)  110 
E)  120

Question 13

The additive model for polygenic inheritance proposes that the genes controlling a trait are all on one chromosome.

Accepted Answer

A) True 
 B)False

Question 14

Figure 
 
-Refer to the figure above to explain the threshold model of complex traits.

Accepted Answer

The answer of Figure 
 
-Refer to the figure above...

Question 15

Along with a significant genetic component,____________________ plays a significant role in the development of spina bifida.

Accepted Answer

The answer of Along with a significant genetic component,____________________ plays...

Question 16

The genotype is fixed at the moment of ____________________ and,barring mutation,is unchanging.

Accepted Answer

The answer of The genotype is fixed at the moment...

Question 17

Mutations of some genes for human height result in ____________________.

Accepted Answer

The answer of Mutations of some genes for human height...

Question 18

Continuous phenotypic variations can be explained by Mendelian inheritance.

Accepted Answer

A) True 
 B)False

Question 19

For a complex trait that is observed less frequently in a given sex in a given family,the recurrence risk for this trait is ____________________ for future children of that sex.

Accepted Answer

The answer of For a complex trait that is observed...

Question 20

Single nucleotide polymorphisms (SNPs)are organized into blocks called ____ and are inherited together.

Accepted Answer

A)  haplotypes 
B)  chromosome assemblies 
C)  DNA assemblies 
D)  multifactorial genes 
E)  threshold groups

Exam 5: The Inheritance of Complex Traits

Skin color in humans is a(n)____________________ trait.

Animal models such as the and are being studied to identify single genes that control aspects of learning,memory,and spatial perception.

Summarize the results of performing genome-wide searches for genes that control obesity.

If two genes control a trait and each has a dominant and a recessive allele,there are ____ phenotypic classes in the F2 generation.

Using today's genetic technology,it is possible to select ____________________ for specific traits.

One of the important assumptions made during the study of heritability in twins is that monozygotic twins share all their and their .

The correlation coefficient for unrelated people is ____________________.

The heritability of a trait is the ____.

Define and give examples of discontinuous and continuous phenotypic variation and explain how understanding of these two concepts resulted in important advances in human genetics.

Most evidence indicates that skin color is controlled by ____ gene pair(s) .

The concept of ____ explains why children of parents who are at the extreme ends of a normal (bell-curve) distribution for a phenotype are usually closer to the population average for the phenotype.

According to Wilhelm Stern's method of measurement,a ten-year-old child who is able to perform the mental tasks of a ten-year-old (but not of an eleven-year old) has an IQ of ____.