Question 1

Proteins

Accepted Answer

A) are important nutritional elements. 
B) make up all observable and measurable body structures. 
C) are the simplest chemicals in the body. 
D) serve to build and operate the body's cells. 
A) are important nutritional elements. 
B) make up all observable and measurable body structures. 
C) are the simplest chemicals in the body. 
D) serve to build and operate the body's cells. D

Question 2

Gregor Mendel's major contribution to the study of inheritance was to show that

Accepted Answer

A) traits are blended from the contributions of both parents. 
B) offspring are 50/50 mixes of the features of both parents. 
C) individual particles,in various combinations,produce traits. 
D) genes operate by combining amino acids to make proteins. 
A) traits are blended from the contributions of both parents. 
B) offspring are 50/50 mixes of the features of both parents. 
C) individual particles,in various combinations,produce traits. 
D) genes operate by combining amino acids to make proteins. C

Question 3

Latest estimates indicate the number of human genes at

Accepted Answer

A) 10,000. 
B) 25,000. 
C) several million. 
D) 3.1 billion. 
A) 10,000. 
B) 25,000. 
C) several million. 
D) 3.1 billion. B

Question 4

The long strands of genetic material found in the nucleus of the cell are called

Accepted Answer

A) genes. 
B) proteins. 
C) loci. 
D) chromosomes. 
A) genes. 
B) proteins. 
C) loci. 
D) chromosomes.

Question 5

A variant of a gene is called a(n)

Accepted Answer

A) mutation. 
B) codon. 
C) allele. 
D) gamete. 
A) mutation. 
B) codon. 
C) allele. 
D) gamete.

Question 6

Recessive alleles

Accepted Answer

A) are less common. 
B) are usually harmful. 
C) are hidden in the phenotype unless homozygous. 
D) will eventually disappear in a species. 
A) are less common. 
B) are usually harmful. 
C) are hidden in the phenotype unless homozygous. 
D) will eventually disappear in a species.

Question 7

The sex cells (sperm and egg,for example)are called

Accepted Answer

A) genotypes. 
B) zygotes. 
C) chromosomes. 
D) gametes. 
A) genotypes. 
B) zygotes. 
C) chromosomes. 
D) gametes.

Question 8

Approximately what percent of the human genome is noncoding?

Accepted Answer

A) 25% 
B) 50% 
C) 75% 
D) 98% 
A) 25% 
B) 50% 
C) 75% 
D) 98%

Question 9

The specialized process that produces sex cells is called

Accepted Answer

A) mitosis. 
B) meiosis. 
C) segregation. 
D) homozygosity. 
A) mitosis. 
B) meiosis. 
C) segregation. 
D) homozygosity.

Question 10

If a person homozygous for the taster allele (TT)produces children with a heterozygote,what is the probability that they will produce a child who is phenotypically a taster?

Accepted Answer

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

Question 11

The physical feature that is the result of the genetic code is called

Accepted Answer

A) genotype. 
B) phenotype. 
C) trait. 
D) protein. 
A) genotype. 
B) phenotype. 
C) trait. 
D) protein.

Question 12

The basic building blocks of the body's cells and the chemical catalysts for the cell's reactions are

Accepted Answer

A) proteins. 
B) genes. 
C) DNA molecules. 
D) chromosomes. 
A) proteins. 
B) genes. 
C) DNA molecules. 
D) chromosomes.

Question 13

Codominance refers to two

Accepted Answer

A) genes that are dominant over all others. 
B) species,both of which are evolutionarily successful. 
C) members of a species in social leadership positions. 
D) alleles that are both expressed when in the heterozygous condition. 
A) genes that are dominant over all others. 
B) species,both of which are evolutionarily successful. 
C) members of a species in social leadership positions. 
D) alleles that are both expressed when in the heterozygous condition.

Question 14

Homozygous means

Accepted Answer

A) having the same alleles in a pair. 
B) producing two identical zygotes at fertilization. 
C) having two different alleles in a pair. 
D) becoming pregnant with identical twins. 
A) having the same alleles in a pair. 
B) producing two identical zygotes at fertilization. 
C) having two different alleles in a pair. 
D) becoming pregnant with identical twins.

Question 15

A "word" of three bases in the genetic code is called

Accepted Answer

A) a codon. 
B) a chromosome. 
C) DNA. 
D) an amino acid. 
A) a codon. 
B) a chromosome. 
C) DNA. 
D) an amino acid.

Question 16

Segregation refers to

Accepted Answer

A) the splitting of cells to produce daughter cells. 
B) the separation of the halves of the DNA molecule when the genetic code is read. 
C) the separation of chromosome and gene pairs during gamete production. 
D) social policy of classifying people according to their genetic traits. 
A) the splitting of cells to produce daughter cells. 
B) the separation of the halves of the DNA molecule when the genetic code is read. 
C) the separation of chromosome and gene pairs during gamete production. 
D) social policy of classifying people according to their genetic traits.

Question 17

A trait that is coded for by more than one gene is called

Accepted Answer

A) monogenic. 
B) dominant. 
C) polygenic. 
D) complex. 
A) monogenic. 
B) dominant. 
C) polygenic. 
D) complex.

Question 18

Heterozygous means

Accepted Answer

A) having the same alleles in a pair. 
B) producing two identical zygotes at fertilization. 
C) having two different alleles in a pair. 
D) becoming pregnant with fraternal twins. 
A) having the same alleles in a pair. 
B) producing two identical zygotes at fertilization. 
C) having two different alleles in a pair. 
D) becoming pregnant with fraternal twins.

Question 19

A,T,G,and C stand for

Accepted Answer

A) names of important amino acids. 
B) the four genes that make up the genetic code. 
C) the four types of chromosomes. 
D) the bases that make up the genetic "alphabet." 
A) names of important amino acids. 
B) the four genes that make up the genetic code. 
C) the four types of chromosomes. 
D) the bases that make up the genetic "alphabet."

Question 20

Genes code for

Accepted Answer

A) the direct production of a physical or chemical trait. 
B) a combination of amino acids to make a protein. 
C) DNA. 
D) the structure of the body's cells. 
A) the direct production of a physical or chemical trait. 
B) a combination of amino acids to make a protein. 
C) DNA. 
D) the structure of the body's cells.

Proteins

Gregor Mendel's major contribution to the study of inheritance was to show that

Latest estimates indicate the number of human genes at

The long strands of genetic material found in the nucleus of the cell are called

A variant of a gene is called a(n)

Recessive alleles

The sex cells (sperm and egg,for example)are called

Approximately what percent of the human genome is noncoding?

The specialized process that produces sex cells is called

If a person homozygous for the taster allele (TT)produces children with a heterozygote,what is the probability that they will produce a child who is phenotypically a taster?

The physical feature that is the result of the genetic code is called

The basic building blocks of the body's cells and the chemical catalysts for the cell's reactions are

Codominance refers to two

Homozygous means

A "word" of three bases in the genetic code is called

Segregation refers to

A trait that is coded for by more than one gene is called

Heterozygous means

A,T,G,and C stand for

Genes code for

Biological Anthropology

The Evolution of Evolution

The Processes of Evolution

The Origin of Species and the Shape of Evolution

A Brief Evolutionary Timetable

The Primates

Primate Behavior and Human Evolution

Studying the Human Past

Evolution of the Early Hominids

The Evolution of Genus Homo

Evolution and Adaptation in Human Populations

Human Biological Diversity

Biological Anthropology and Todays World

Filters

Exam 3: Evolutionary Genetics

Proteins

Gregor Mendel's major contribution to the study of inheritance was to show that

Latest estimates indicate the number of human genes at

The long strands of genetic material found in the nucleus of the cell are called

A variant of a gene is called a(n)

Recessive alleles

The sex cells (sperm and egg,for example)are called

Approximately what percent of the human genome is noncoding?

The specialized process that produces sex cells is called

If a person homozygous for the taster allele (TT)produces children with a heterozygote,what is the probability that they will produce a child who is phenotypically a taster?

The physical feature that is the result of the genetic code is called

The basic building blocks of the body's cells and the chemical catalysts for the cell's reactions are

Codominance refers to two

Homozygous means

A "word" of three bases in the genetic code is called

Segregation refers to

A trait that is coded for by more than one gene is called

Heterozygous means

A,T,G,and C stand for

Genes code for

Biological Anthropology

The Evolution of Evolution

The Processes of Evolution

The Origin of Species and the Shape of Evolution

A Brief Evolutionary Timetable

The Primates

Primate Behavior and Human Evolution

Studying the Human Past

Evolution of the Early Hominids

The Evolution of Genus Homo

Evolution and Adaptation in Human Populations

Human Biological Diversity

Biological Anthropology and Todays World

Filters