The allele for a recessive trait is

usually represented by a capital letter

T or F

False

Probability is the likelihood that

a certain event will occur

T or F

True

Mendel discovered predictable

patterns in the inheritance of traits

T or F

True

Genetics is the branch of biology that

involves the study of how different traits

are transmitted from one generation to the next

T or F

True

Refer to illustration #1.  Child #3 probably

has a homozygous recessive phenotype

T or F

True

Refer to illustration #1.  

The father listed in

the pedigree is most likely

heterozygous for the trait.

T or F

True

An autosomal trait will occur with equal

frequency in both males and females

T or F

True

Mendel's initial experiments were

monohybrid crosses

T or F

True

A dominant allele masks the

effect of a recessive allele

T or F

True

Heterozygous individuals have two of the

same alleles for a particular gene

T or F

False

The phenotype of an organism..

represents its genetic composition

or

is the physical appearance of a trait

is the physical appearance of a trait

What would be the blood type of a person

who inherited an A allele from one parent 

and an O allele from the other?

type A

or

type B

  type A

Tallness (T) is dominant to shortness (t) in pea 

plants. Which of the following represents a genotype

of a pea plant that is heterozygous for tallness?

Tt

or

tt

  Tt

The "father" of genetics was 

A. Knight

or 

Gregor Mendel

Gregor Mendel

The scientific study of heredity is called

genetics

or

pollination

genetics

If a characteristic is sex-linked, it...

occurs most commonly in males

or

occurs only in females

occurs most commonly in males

Refer to illustration #2.  Which box in

the Punnett square represents a

child who does not have freckles?

box 3

or

box 4

box 4

Refer to illustration #2.  The child represented

in box 1 in the Punnett square would

be homozygous for freckles

or

have an extra freckles chromosome

be homozygous for freckles

Refer to illustration #2. The child in

box 3 of the Punnett square has the genotype

FF

or

Ff

Ff

Since the allele for colorblindness is located 

on the X chromosome, colorblindness...

occurs ony in adults

or

is sex-linked

is sex-linked

 Mendel's law of segregation states that

 each pair of alleles remains together when

gametes are formed

or

the two alleles for a trait separate when

gametes are formed

the two alleles for a trait separate when

gametes are formed

 Which of the following traits is controlled

by multiple alleles in humans?

sickle cell anemia

or

blood type

  blood type

 How many different phenotypes can be produced

by a pair of codominant alleles?

3

or

4

3

 The passing of traits from parents

to offspring is called

genetics

or

heredity

heredity

A change in a gene due to damage

or being copied incorrectly is called

segregation

or

a mutation

a mutation

Mendel obtained his P generation by allowing 

the plants to

self-pollinate

or

cross-pollinate

self-pollinate

 If an individual possesses two recessive

alleles for the same trait,

the individual is said to be

homozygous for the trait

or

haploid for the trait

homozygous for the trait

In rabbits, black fur (B) is dominant to brown fur (b).

Consider the following cross between two rabbits.

Refer to illustration #3.  The phenotype of the offspring

 indicated by box 3 would be

brown

or black

black

Refer to illustration #3.  Both of the

parents in the cross are

black

or

brown

black

Refer to illustration #3. The device shown, which 

is used to determine the probable outcome of genetic

mendelian box

or

Punnett square

Punnett square

The unknown genotype of an individual with 

a dominant phenotype can bedetermined using

probability

or

a test cross

  a test cross

 A diagram in which several generations

of a family and the occurrence of certain

genetic characteristics are shown

pedigree

or 

family karyotype

pedigree