Question 1

In mammals, the male parent's gametes determine the sex of his offspring because

Accepted Answer

A) the X chromosome originates only from females. 
B) sperm are more powerful than eggs. 
C) the Y chromosome is present in males only. 
D) the X chromosome determines sex. 
A) the X chromosome originates only from females. 
B) sperm are more powerful than eggs. 
C) the Y chromosome is present in males only. 
D) the X chromosome determines sex.

Question 2

Somatic cells include all of the following except

Accepted Answer

A) lung cells. 
B) sex cells. 
C) skin cells. 
D) brain tissue. 
A) lung cells. 
B) sex cells. 
C) skin cells. 
D) brain tissue.

Question 3

The expression of polygenic traits

Accepted Answer

A) is never influenced by environmental factors. 
B) is determined by genes at several loci in conjunction with environmental factors. 
C) is determined solely by genes at two or more loci. 
D) none of the above. 
A) is never influenced by environmental factors. 
B) is determined by genes at several loci in conjunction with environmental factors. 
C) is determined solely by genes at two or more loci. 
D) none of the above.

Question 4

Gametes are

Accepted Answer

A) diploid. 
B) haploid. 
C) produced during mitosis. 
D) none of the above. 
A) diploid. 
B) haploid. 
C) produced during mitosis. 
D) none of the above.

Question 5

A trait's heritability

Accepted Answer

A) is the proportion of its variation that is genetic. 
B) is the proportion of its variation that cannot be explained. 
C) is the proportion of its variation that is the product of genes and environment. 
D) is the proportion of its variation that results from the environment alone. 
A) is the proportion of its variation that is genetic. 
B) is the proportion of its variation that cannot be explained. 
C) is the proportion of its variation that is the product of genes and environment. 
D) is the proportion of its variation that results from the environment alone.

Question 6

Within the kingdom Animalia

Accepted Answer

A) mammals have differing numbers of sex chromosomes. 
B) mammals have the same number of chromosomes. 
C) mammals have differing number of chromosomes. 
D) all mammals have the same DNA. 
A) mammals have differing numbers of sex chromosomes. 
B) mammals have the same number of chromosomes. 
C) mammals have differing number of chromosomes. 
D) all mammals have the same DNA.

Question 7

________ DNA is heteroplasmic, meaning it can differ among different parts of a person's body.

Accepted Answer

A) Nuclear 
B) All 
C) Ribosomal 
D) Mitochondrial 
A) Nuclear 
B) All 
C) Ribosomal 
D) Mitochondrial

Question 8

A doctor finds that the mammary glands of a woman are not functioning due to a genetic abnormality that influences the structural design of the thoracic cavity.This is likely

Accepted Answer

A) the result of a mutation on the sex chromosomes. 
B) the result of a mutation on a Hoxgene. 
C) the result of a mutation in HSV-1. 
D) none of the above. 
A) the result of a mutation on the sex chromosomes. 
B) the result of a mutation on a Hoxgene. 
C) the result of a mutation in HSV-1. 
D) none of the above.

Question 9

In his experiments with garden peas, Mendel found that one physical unit is inherited from the father and one from the mother.This provided evidence for

Accepted Answer

A) Mendel's law of independent assortment. 
B) Thomas Hunt Morgan's ideas of mutation. 
C) Mendel's law of segregation. 
D) Mendel's concept of nondisjunction. 
A) Mendel's law of independent assortment. 
B) Thomas Hunt Morgan's ideas of mutation. 
C) Mendel's law of segregation. 
D) Mendel's concept of nondisjunction.

Question 10

Use what you know about meiosis to explain Mendel's law of segregation and law of independent assortment.

Accepted Answer

Although Mendel did not know about chrom

Question 11

The complete set of genes in an individual cell is called

Accepted Answer

A) amino acids. 
B) proteins. 
C) the genome. 
D) the gene pool. 
A) amino acids. 
B) proteins. 
C) the genome. 
D) the gene pool.

Question 12

Human ABO blood types are

Accepted Answer

A) determined by regulatory genes. 
B) controlled by multiple alleles. 
C) controlled by multiple genes. 
D) none of the above. 
A) determined by regulatory genes. 
B) controlled by multiple alleles. 
C) controlled by multiple genes. 
D) none of the above.

Question 13

What makes up a human karyotype?

Accepted Answer

A) 23 autosomal chromosome pairs and one pair of sex chromosomes 
B) 24 autosomal chromosome pairs and one pair of sex chromosomes 
C) 22 autosomal chromosome pairs and one pair of sex chromosomes 
D) 21 autosomal chromosome pairs and one pair of sex chromosomes 
A) 23 autosomal chromosome pairs and one pair of sex chromosomes 
B) 24 autosomal chromosome pairs and one pair of sex chromosomes 
C) 22 autosomal chromosome pairs and one pair of sex chromosomes 
D) 21 autosomal chromosome pairs and one pair of sex chromosomes

Question 14

Transfer RNA

Accepted Answer

A) seeks complementary triplet strands of mRNA codons. 
B) contains codons that correspond to specific amino acids. 
C) brings amino acids together to form polypeptide chains. 
D) all of the above. 
A) seeks complementary triplet strands of mRNA codons. 
B) contains codons that correspond to specific amino acids. 
C) brings amino acids together to form polypeptide chains. 
D) all of the above.

Question 15

Which of the following is an inherited disorder of the regulatory genes that control connective tissue leading to long, thin extremities?

Accepted Answer

A) Kleinfelter's syndrome 
B) Marfan syndrome 
C) Edward's syndrome 
D) Down syndrome 
A) Kleinfelter's syndrome 
B) Marfan syndrome 
C) Edward's syndrome 
D) Down syndrome

Question 16

RNA differs from DNA in that it uses

Accepted Answer

A) uracil instead of adenine. 
B) uracil instead of guanine. 
C) guanine instead of uracil. 
D) uracil instead of thymine. 
A) uracil instead of adenine. 
B) uracil instead of guanine. 
C) guanine instead of uracil. 
D) uracil instead of thymine.

Question 17

Meiosis results in the production of

Accepted Answer

A) two gametes. 
B) four gametes. 
C) a single gamete. 
D) none of the above. 
A) two gametes. 
B) four gametes. 
C) a single gamete. 
D) none of the above.

Question 18

Individuals whose blood type is A and who carry both dominant and recessive genes at this locus have a genotype of

Accepted Answer

A) AA. 
B) AO. 
C) AB. 
D) none of the above. 
A) AA. 
B) AO. 
C) AB. 
D) none of the above.

Question 19

Prokaryotes first appeared

Accepted Answer

A) 10,000 years ago. 
B) 1 mya. 
C) 3.7 bya. 
D) 65 mya. 
A) 10,000 years ago. 
B) 1 mya. 
C) 3.7 bya. 
D) 65 mya.

Question 20

Haplotypes are

Accepted Answer

A) not likely to recombine during crossovers. 
B) likely to recombine during crossovers. 
C) genes that code for similar things. 
D) genetic material that comes from one parent only. 
A) not likely to recombine during crossovers. 
B) likely to recombine during crossovers. 
C) genes that code for similar things. 
D) genetic material that comes from one parent only.

In mammals, the male parent's gametes determine the sex of his offspring because

Somatic cells include all of the following except

The expression of polygenic traits

Gametes are

A trait's heritability

Within the kingdom Animalia

________ DNA is heteroplasmic, meaning it can differ among different parts of a person's body.

A doctor finds that the mammary glands of a woman are not functioning due to a genetic abnormality that influences the structural design of the thoracic cavity.This is likely

In his experiments with garden peas, Mendel found that one physical unit is inherited from the father and one from the mother.This provided evidence for

Use what you know about meiosis to explain Mendel's law of segregation and law of independent assortment.

The complete set of genes in an individual cell is called

Human ABO blood types are

What makes up a human karyotype?

Transfer RNA

Which of the following is an inherited disorder of the regulatory genes that control connective tissue leading to long, thin extremities?

RNA differs from DNA in that it uses

Meiosis results in the production of

Individuals whose blood type is A and who carry both dominant and recessive genes at this locus have a genotype of

Prokaryotes first appeared

Haplotypes are

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The Origins and Evolution of Early Homo

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Our Last 10,000 Years: Agriculture, Population, and Biology

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Exam 3: Genetics: Reproducing Life and Producing Variation

In mammals, the male parent's gametes determine the sex of his offspring because

Somatic cells include all of the following except

The expression of polygenic traits

Gametes are

A trait's heritability

Within the kingdom Animalia

________ DNA is heteroplasmic, meaning it can differ among different parts of a person's body.

A doctor finds that the mammary glands of a woman are not functioning due to a genetic abnormality that influences the structural design of the thoracic cavity.This is likely

In his experiments with garden peas, Mendel found that one physical unit is inherited from the father and one from the mother.This provided evidence for

Use what you know about meiosis to explain Mendel's law of segregation and law of independent assortment.

The complete set of genes in an individual cell is called

Human ABO blood types are

What makes up a human karyotype?

Transfer RNA

Which of the following is an inherited disorder of the regulatory genes that control connective tissue leading to long, thin extremities?

RNA differs from DNA in that it uses

Meiosis results in the production of

Individuals whose blood type is A and who carry both dominant and recessive genes at this locus have a genotype of

Prokaryotes first appeared

Haplotypes are

What Is Physical Anthropology?

Evolution: Constructing a Fundamental Scientific Theory

Genes and Their Evolution: Population Genetics

Biology in the Present: Living People

Biology in the Present: The Other Living Primates

Primate Sociality, Social Behavior, and Culture

Fossils and Their Place in Time and Nature

Primate Origins and Evolution: the First 50 Million Years

Early Hominid Origins and Evolution: the Roots of Humanity

The Origins and Evolution of Early Homo

The Origins, Evolution, and Dispersal of Modern People

Our Last 10,000 Years: Agriculture, Population, and Biology

Filters