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7th Reproduction, DNA, and Adaptation Review

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Adenine pairs with

a)

her boyfriend

b)

thymine

c)

cytosine

d)

guanine

2.

DNA is made of

a)

sugar and spice

b)

nucleotides

c)

cytosine

d)

genes

3.

Asexual reproduction produces

a)

offspring with many different traits

b)

genetically identical offspring

c)

more than 2 offspring a minute

d)

only amoeba and bacteria

4.

Which of the following describes a homozygous dominant trait?

a)

AA

b)

Aa

c)

aa

d)

NBA

5.

Which of the following best represents a phenotype?

a)

Pp

b)

DNA

c)

curly hair

d)

PP

6.

Which genotype will show a recessive phenotype?

a)

BB

b)

BBB

c)

Bb

d)

bb

7.

Which best describes the father in this example?

a)

Homozygous dominant

b)

heterozygous

c)

homozygous recessive

d)

a cool dude

8.

What is the percentage of chance that the offspring will show a recessive trait?

a)

25%

b)

50%

c)

75%

d)

100%

9.

Curly hair (C) is dominant over straight hair (c). Which genotype would describe a person with curly hair?

a)

cc

b)

Cc

c)

SeeSee

d)

beautiful

10.

What adaptation does the chameleon show in this picture?

a)

hibernation

b)

behavioral

c)

structural

d)

camouflage

11.

What makes wildebeest migrate every year?

a)

instinct learned over years

b)

structural adaptations

c)

instinct inherited from their parents

d)

generational chromosomes

12.

A turtle's shell is an example of

a)

instinct

b)

learned behaviors

c)

mimicry

d)

structural adaptation

13.

Nucleotides are made of

a)

DNA pieces

b)

cytosine, adenine, guanine, and thymine

c)

sugars, phosphates, and nitrogenous bases

d)

chromosomes, DNA, and genes

14.

If half of a section of a DNA strand has GGCCTAT as it's nitrogenous bases, then what would the other half have?

a)

TATCCGG

b)

CCGGATA

c)

GGCCTAT

d)

who knows?

15.

Reproduction is important to all living things because they must

a)

be a happy family

b)

pass on genetic material

c)

pair nitrogenous bases evenly

d)

they all have cells