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Genetics Child Care Quiz #1

Total questions: 60

Worksheet time: 2hrs 44mins

Name
Class
Date
1.

The exact genetic makeup of an organism, such as RR, Tt, PP is its?

a)

phenotype

b)

dominance

c)

genotype

d)

trait

2.

If "T" is the allele for tall and "t" is the allele for short, then Tt would produce?

a)

tall

b)

short

c)

medium

d)

not enough info

3.

Red (R) is dominant over white (r). How can a flower be white?

a)

It can have RR and be white.

b)

It has to have rr.

c)

It has to have rR

d)

There is no way it can be white until the third generation.

4.

In guinea pigs, the alleles for black hair(B) is dominant to the allele for brown hair(b). Two black-haired guinea pigs are crossed. One of the pigs is homozygous for black hair and one is heterozygous. What percentage of their offspring are expected to have black hair?

a)

25%

b)

50%

c)

75%

d)

100%

5.

It is the trait that is always expressed and written in capital letters.

a)

Dominant allele

b)

Recessive allele

c)

DNA

d)

RNA

6.

Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?

a)

Gg

b)

gg

c)

GG

d)

none of these

7.

Which of the following is a heterozygous dominant genotype? 

a)

GG

b)

gg

c)

GGG

d)

Gg

8.

In Mendel's pea plants, the homozygous recessive phenotype was white flowers.  If Mendel crossed two homozygous recessive pea plants, what color flowers would be seen in the offspring?

a)

white and purple

b)

white 

c)

purple

d)

lavendar

9.

What percentage of the offspring will be purebred dominant?

a)

0%

b)

25%

c)

50%

d)

75%

10.

Dominant alleles are represented by a(n)

a)

phenotype

b)

lower case letter

c)

upper case letter

d)

punnett square 

11.

What type of traits "show up" in a population more often?

a)

dominant

b)

recessive

c)

punnett squares

d)

alleles

12.

True or False:
A heterozygous dominant trait can be written as BB.

a)

True

b)

False

13.

Round (R) seeds are dominant to wrinkled (r) seeds.
What is the genotype for a homozygous dominant offspring?

a)

RR

b)

Rr

c)

rr

14.

If two purebred species (BB) are crossed, what percentage of their offspring would be BB?

a)

25%

b)

50%

c)

75%

d)

100%

15.

What do you call the physical expression of a gene?

a)

genotype

b)

dominant

c)

phenotype

d)

allele

16.

Short hair (S) is dominant to long hair (s).
What is the genotype for an offspring with long hair?

a)

SS

b)

Ss

c)

ss

17.

What percentage of the offspring will be heterozygous dominant?

a)

100%

b)

75%

c)

50%

d)

25%

18.

If a pea plant were homozygous recessive for height, how would its alleles be represented?

a)

TT

b)

Tt

c)

tt

d)

tT

19.

The letters on the TOP AND SIDE of a punnett square represent ______________.

a)

The combination of alleles in offspring.

b)

The possible alleles given by the parents following meiosis.

c)

The genotype and phenotype of offspring.

d)

The results of genetic mutations in offspring.

20.

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

a)

0 %

b)

25%

c)

50%

d)

75%

21.

Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?

a)

Gg

b)

gg

c)

GG

d)

none of these

22.

Which of the following is a heterozygous dominant genotype? 

a)

GG

b)

gg

c)

GGG

d)

Gg

23.

In Mendel's pea plants, the homozygous recessive phenotype was white flowers.  If Mendel crossed two homozygous recessive pea plants, what color flowers would be seen in the offspring?

a)

white and purple

b)

white 

c)

purple

d)

lavendar

24.

What percentage of the offspring will be purebred dominant?

a)

0%

b)

25%

c)

50%

d)

75%

25.

Dominant alleles are represented by a(n)

a)

phenotype

b)

lower case letter

c)

upper case letter

d)

punnett square 

26.

What type of traits "show up" in a population more often?

a)

dominant

b)

recessive

c)

punnett squares

d)

alleles

27.

True or False:
A heterozygous dominant trait can be written as BB.

a)

True

b)

False

28.

D = dimples        d = no dimples 
What is the genotype for a homozygous recessive offspring?

a)

DD

b)

Dd

c)

dd

29.

Round (R) seeds are dominant to wrinkled (r) seeds.
What is the genotype for a homozygous dominant offspring?

a)

RR

b)

Rr

c)

rr

30.

If two purebred species (BB) are crossed, what percentage of their offspring would be BB?

a)

25%

b)

50%

c)

75%

d)

100%

31.

What do you call the physical expression of a gene?

a)

genotype

b)

dominant

c)

phenotype

d)

allele

32.

Short hair (S) is dominant to long hair (s).
What is the genotype for an offspring with long hair?

a)

SS

b)

Ss

c)

ss

33.

What percentage of the offspring will be heterozygous dominant?

a)

100%

b)

75%

c)

50%

d)

25%

34.

What did Mendel call the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)?

a)

Genesis

b)

Elective traits

c)

Alleles

d)

Quadrants

35.

If green is dominant over purple, then what is the genotype for this individual?

a)

Purple

b)

Green

c)

GG

d)

gg

36.

If a pea plant were homozygous recessive for height, how would its alleles be represented?

a)

TT

b)

Tt

c)

tt

d)

tT

37.

A __________ is a segment of DNA that codes for a particular protein, which leads to a particular trait.

a)

Gene

b)

Allele

c)

Codon

d)

Nucleotide

38.

The letters on the TOP AND SIDE of a punnett square represent ______________.

a)

The combination of alleles in offspring.

b)

The possible alleles given by the parents following meiosis.

c)

The genotype and phenotype of offspring.

d)

The results of genetic mutations in offspring.

39.

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

a)

0 %

b)

25%

c)

50%

d)

75%

40.

Gregor Mendel is known as the father of _________

a)

Modern Medicine

b)

Father of the Green Revolution

c)

Father of Genetics

d)

The Pea Plant Man

41.

What do we call the table used to calculate the probability of an offspring's genotype?

a)

Punnett square

b)

Venn diagram

c)

Golden ratio

d)

Fibonacci sequence

42.

Which is the correct phenotype for this organism?

a)

BB

b)

blue

c)

green

d)

bb

43.

The study of Heredity

a)

science

b)

genetics

c)

english

d)

gene

44.

Organisms that always produce offspring with the same traits are known as

a)

purebred

b)

hybrid

c)

dominant trait

d)

recessive trait

45.

Who is considered the "father" of modern genetics?

a)

Einstein

b)

Mendel

c)

Disney

d)

Washington

46.

TT,tt,PP,pp,SS,ss are examples of alleles that are?

a)

homozygous

b)

heterozygous

c)

different

d)

homologous 

47.

The exact genetic makeup of an organism, such as RR, Tt, PP is its?

a)

phenotype

b)

dominance

c)

genotype

d)

trait

48.

Y for yellow body is dominant over y for blue body.  What alleles would produce yellow bodies?

a)

YY,yy

b)

Yy,yy

c)

YY only

d)

YY,Yy

49.

A physical characteristic that can be passed from parent to offspring.

a)

behavior

b)

trait

c)

strong muscles

d)

ability to fly a plane.

50.

A characteristic that is passed from parent to offspring

a)

inherited trait

b)

chromosome

c)

pedigree

d)

DNA

51.
One of the threadlike structures in the nucleus of a cell that contain directions for the cell's activities
a)
variation
b)
pedigree
c)
DNA
d)
chromosome
52.
The passing of inherited traits from parents to offspring
a)
acquired traits
b)
inherited traits
c)
heredity
d)
genetics
53.
Deoxyribonucleic acid, a long, complex molecule that controls heredity
a)
inherited trait
b)
chromosome
c)
DNA
d)
pedigree
54.
The hidden form of an inherited trait
a)
dominant trait
b)
recessive trait
c)
purebred
d)
hybrid
55.
The form of an inherited trait that masks the other form of the same trait.
a)
dominant trait
b)
recessive trait
c)
purebred
d)
hybrid
56.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
57.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
58.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
59.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
60.
What is the relationship between DNA and chromosomes?
a)
Chromosomes are made of DNA
b)
DNA is made of chromosomes
c)
DNA and chromosomes are the same thing.
d)
All of the above are correct