Question 1

In the study of genetics the offspring of the P generation is referred to as the

Accepted Answer

A) wild type generation. 
B) F1 generation. 
C) genotype. 
D) F2 generation. 
E) phenotypE. 
A) wild type generation. 
B) F1 generation. 
C) genotype. 
D) F2 generation. 
E) phenotypE.

Question 2

If two genes are linked,they will appear to violate Mendel's law of segregation.

Accepted Answer

A) True 
 B)False

Question 3

A dihybrid cross of linked genes theoretically gives a phenotypic ratio of

Accepted Answer

A) 9:3:3:1. 
B) 2:1. 
C) 3:1. 
D) 1:1. 
E) 1:1:1:1. 
A) 9:3:3:1. 
B) 2:1. 
C) 3:1. 
D) 1:1. 
E) 1:1:1:1.

Question 4

In pedigree charts,autosomal recessive disorders typically

Accepted Answer

A) appear in every generation. 
B) appear only in males. 
C) appear only in females. 
D) seem to disappear in one generation,only to reappear in the next generation. 
E) occur every third generation. 
A) appear in every generation. 
B) appear only in males. 
C) appear only in females. 
D) seem to disappear in one generation,only to reappear in the next generation. 
E) occur every third generation.

Question 5

Recombinant chromosomes have a mix of paternal and maternal alleles due to

Accepted Answer

A) random fertilization. 
B) linkage. 
C) independent assortment. 
D) crossing over. 
E) mutation. 
A) random fertilization. 
B) linkage. 
C) independent assortment. 
D) crossing over. 
E) mutation.

Question 6

Genotype means

Accepted Answer

A) the number of gametes in an individual. 
B) the combination of alleles in an individual. 
C) the number of chromosomes in an individual. 
D) the observable expression of the genes in an individual. 
E) the genes an individual has. 
A) the number of gametes in an individual. 
B) the combination of alleles in an individual. 
C) the number of chromosomes in an individual. 
D) the observable expression of the genes in an individual. 
E) the genes an individual has.

Question 7

If you cross two heterozygous Yy pea plants,what proportion of the offspring will be the dominant color yellow?

Accepted Answer

A) 50% 
B) 75% 
C) 25% 
D) 0% 
E) 100% 
A) 50% 
B) 75% 
C) 25% 
D) 0% 
E) 100%

Question 8

On a diagram of linked genes on a chromosome,the distance between the genes would be based on thefrequency of crossing over between the genes during meiosis.

Accepted Answer

A) True 
 B)False

Question 9

A gene that produces a protein important in more than one biochemical pathway is

Accepted Answer

A) dominant. 
B) recessive. 
C) pleiotropiC. 
D) codominant. 
E) incomplete dominant. 
A) dominant. 
B) recessive. 
C) pleiotropiC. 
D) codominant. 
E) incomplete dominant.

Question 10

Mendel's monohybrid cross of tall parents with the genotype Tt resulted in a tall to short ratio of

Accepted Answer

A) 1:1. 
B) 1:2. 
C) 2:1. 
D) 3:1. 
E) 1:3. 
A) 1:1. 
B) 1:2. 
C) 2:1. 
D) 3:1. 
E) 1:3.

Question 11

If the heterozygous phenotype is intermediate between the homozygotes,this is called

Accepted Answer

A) codominance. 
B) independent assortment. 
C) linkage. 
D) incomplete dominance. 
E) polygenic. 
A) codominance. 
B) independent assortment. 
C) linkage. 
D) incomplete dominance. 
E) polygenic.

Question 12

In the ABO blood type system the alleles IA,IB,and i produce

Accepted Answer

A) three phenotypes. 
B) two phenotypes. 
C) one phenotype. 
D) four phenotypes. 
E) type A and type B blood types only. 
A) three phenotypes. 
B) two phenotypes. 
C) one phenotype. 
D) four phenotypes. 
E) type A and type B blood types only.

Question 13

Traits that depend on more than one gene are

Accepted Answer

A) polygenic. 
B) pleiotropic. 
C) codominant. 
D) recessive. 
E) incomplete dominant traits. 
A) polygenic. 
B) pleiotropic. 
C) codominant. 
D) recessive. 
E) incomplete dominant traits.

Question 14

In the ABO blood type system,the IA allele is _____ with the IB allele.

Accepted Answer

A) dominant 
B) codominant 
C) recessive 
D) homologous 
E) heterologous 
A) dominant 
B) codominant 
C) recessive 
D) homologous 
E) heterologous

Question 15

To inherit an autosomal dominant disorder a person could receive the disease causing allele from

Accepted Answer

A) the father only,not the mother. 
B) the mother only,not the father. 
C) the mother or the father. 
D) the parent who does not exhibit the disease. 
E) All answers are correct. 
A) the father only,not the mother. 
B) the mother only,not the father. 
C) the mother or the father. 
D) the parent who does not exhibit the disease. 
E) All answers are correct.

Question 16

A dihybrid cross is a mating between two individuals that are each ______________ for ___________ gene(s).

Accepted Answer

A) homozygous,one 
B) homozygous,two 
C) homologous,two 
D) heterozygous,one 
E) heterozygous,two 
A) homozygous,one 
B) homozygous,two 
C) homologous,two 
D) heterozygous,one 
E) heterozygous,two

Question 17

The individual sometimes referred to as the "father of genetics" because he influenced the science of genetics more than anyone else is Gregor Mendel.

Accepted Answer

A) True 
 B)False

Question 18

In pedigree charts,autosomal dominant disorders typically

Accepted Answer

A) appear only in males. 
B) appear only in females. 
C) appear in every generation. 
D) seem to disappear in one generation,only to reappear in the next generation. 
E) occur every third generation. 
A) appear only in males. 
B) appear only in females. 
C) appear in every generation. 
D) seem to disappear in one generation,only to reappear in the next generation. 
E) occur every third generation.

Question 19

If you cross two pea plants,one with green peas and the other with yellow peas,and all of the offspring have yellow peas,you conclude

Accepted Answer

A) the yellow parent was homozygous for the recessive allele. 
B) the yellow parent was homozygous for the dominant gene. 
C) the yellow parent was homozygous for the dominant allele. 
D) the yellow parent was homozygous for the recessive gene. 
E) the yellow parent was heterozygous. 
A) the yellow parent was homozygous for the recessive allele. 
B) the yellow parent was homozygous for the dominant gene. 
C) the yellow parent was homozygous for the dominant allele. 
D) the yellow parent was homozygous for the recessive gene. 
E) the yellow parent was heterozygous.

Question 20

If you cross RrYy and RRyy pea plants,what fraction of the offspring will have round peas? R=round,r=wrinkled,Y=yellow,y=green

Accepted Answer

A) 50% 
B) 75% 
C) 100% 
D) 25% 
E) 0% 
A) 50% 
B) 75% 
C) 100% 
D) 25% 
E) 0%

Exam 10: Patterns of Inheritance

In the study of genetics the offspring of the P generation is referred to as the

If two genes are linked,they will appear to violate Mendel's law of segregation.

A dihybrid cross of linked genes theoretically gives a phenotypic ratio of

In pedigree charts,autosomal recessive disorders typically

Recombinant chromosomes have a mix of paternal and maternal alleles due to

Genotype means

If you cross two heterozygous Yy pea plants,what proportion of the offspring will be the dominant color yellow?

On a diagram of linked genes on a chromosome,the distance between the genes would be based on thefrequency of crossing over between the genes during meiosis.

A gene that produces a protein important in more than one biochemical pathway is

Mendel's monohybrid cross of tall parents with the genotype Tt resulted in a tall to short ratio of

If the heterozygous phenotype is intermediate between the homozygotes,this is called

In the ABO blood type system the alleles IA,IB,and i produce

Traits that depend on more than one gene are

In the ABO blood type system,the IA allele is _____ with the IB allele.

To inherit an autosomal dominant disorder a person could receive the disease causing allele from

A dihybrid cross is a mating between two individuals that are each ______________ for ___________ gene(s).

The individual sometimes referred to as the "father of genetics" because he influenced the science of genetics more than anyone else is Gregor Mendel.

In pedigree charts,autosomal dominant disorders typically

If you cross two pea plants,one with green peas and the other with yellow peas,and all of the offspring have yellow peas,you conclude

If you cross RrYy and RRyy pea plants,what fraction of the offspring will have round peas? R=round,r=wrinkled,Y=yellow,y=green

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Filters

In the ABO blood type system the alleles I^A,I^B,and i produce

In the ABO blood type system,the I^A allele is _____ with the I^B allele.

A dihybrid cross is a mating between two individuals that are each ____ for _ gene(s).