wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Traits & Reproduction Unit Test

Total questions: 60

Worksheet time: 53mins

Name
Class
Date
1.
A nucleotide is made up of three parts:  which of these is not one of those parts?
a)
sugar
b)
phosphate
c)
amino acids
d)
base
2.
__________________ is a change in the nucleotide base sequence of DNA.
a)
switch
b)
eraser
c)
creation
d)
mutation
3.
DNA is a polymer made of:
a)
Nucleotides
b)
Ribosomes
c)
Purines
d)
Pyrimidines
4.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
5.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
8.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
9.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
10.
DNA codes for...
a)
bases
b)
proteins
c)
amino acids
d)
phosphates
11.

What base pairs with adenine?

a)

phosphate

b)

guanine

c)

cytosine

d)

thymine

12.

What base pairs with thymine?

a)

adenine

b)

guanine

c)

cytosine

d)

limousine

13.

What base pairs with guanine?

a)

cytosine

b)

guanine

c)

thymine

d)

sugar

14.

What base pairs with cytosine?

a)

guanine

b)

adenine

c)

thymine

d)

magazine

15.

Why is DNA important?

a)

It teleports cookies to my locker.

b)

It carries the instructions for our cells.

c)

It allows me to be invisible.

d)

It gave us a snow day in August.

16.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
17.
What is a gene?
a)
A bundle (like a hot dog bun) that the DNA is packed into
b)
something inside the nucleus
c)
a piece of DNA
d)
all of your DNA
18.

Bundled up, organized DNA is called a

a)

gene

b)

trait

c)

chromosome

d)

nucleotide

19.
Which series is arranged in order from largest to smallest in size?
a)
gene, chromosome, nucleus, cell, DNA, nucleotide
b)
cell, nucleus, chromosome, DNA, gene, nucleotide
c)
nucleotide, chromosome, cell, DNA, nucleus
d)
cell, DNA, gene, nucleotide, nucleus, chromosome
20.

Two parrots have different parents. One parrot has red chest feathers, and the other parrot has yellow chest feathers. Why do the parrots have different feather colors on their chest?

a)

Each parrot has different feather colors because offspring from different parents will have different feather colors.

b)

Each parrot has different feather colors because they have different versions of the gene for feather color that connect together to make different feather colors.

c)

The parrots have different versions of the gene for feather color, and the genes are different colors in each parrot’s feathers.

d)

The parrots have different versions of the gene for feather color, which instruct for different proteins that connect in different ways to make different feather colors.

21.

A father rabbit had long ears while the mother rabbit had short ears. Which of these statements explains why one of the baby bunnies could have long ears?

a)

The baby bunny inherited its copies of the gene for ear length from its father and not from its mother. Those genes connect together to make its ears long.

b)

The baby bunny inherited its copies of the gene for ear length from its father and not from its mother. Just like its father’s genes, those genes instruct for proteins that connect in ways that make its ears long.

c)

The baby bunny inherited one copy of the gene for ear length from its father and one copy from its mother. That gene combination instructs for proteins that connect in ways that make long ears.

d)

The baby bunny inherited one copy of the gene for ear length from its father and one copy from its mother. Those genes connect together to make its long ears.

22.
What is a mutation and how does it affect genes?
a)
A mutation is a growth on an organism.
b)
A mutation is a copy of a gene.
c)
A mutation is a change in an organisms genes.
d)
A mutation is a feature of an organism.
23.

What do alleles (gene versions) do?

a)
Make the proteins
b)
Provide instructions for proteins
c)
Give the  organism its genes
d)
Pass on the genes to the offspring
24.
How do different protein structures in cells determine traits?
a)
Different protein structures affect how they connect to other proteins molecules.
b)
Different protein structures have no effect on connecting genes.
c)
Different protein structures can change the gene.
d)
Different protein structures provide instructions.
25.
How many proteins do heterozygous gene versions create?
a)
One protein
b)
Two proteins
c)
Three proteins
d)
They are the same.
26.
How do organisms get their traits?
a)
They get thier traits from their environment.
b)
They inherit one copy of a gene from their mother.
c)
They inherit  copy of a gene version from their mother and father.
d)
They get their traits from the proteins they eat.
27.
What does homozygous mean?
a)
Two copies of a gene version that are different.
b)
Two copies of a gene version that are the same.
c)
Two copies of a gene that are mutated.
d)
Two copies of a gene that are used to create another gene.
28.
How do gene versions determine different traits?
a)
An organism has two copies of a gene for each feature.
b)
Each parent randomly passes on one of its two copies of genes to its offspring.
c)
Each gene version provides a unique instruction to make a specific protein molecule in an organism's cells.
d)
Traits vary between parents and offspring and among siblings
29.
How does sexual reproduction result in a variation among offspring?
a)
Organisms usually inherit their traits from the parent that lives in the same environment.
b)
Each gene version provides a unique set of instructions to make a protein.
c)
Protein molecules interact with other protein molecules.
d)
Each parent randomly passes on one of its two copes of each gene to its offspring.
30.

Having gene versions that are different

a)

heterozygous

b)

homozygous

31.

Having gene versions that are the same

a)

heterozygous

b)

homozygous

32.

A characteristic that all members of a species have

a)

gene

b)

feature

c)

trait

33.

A specific characteristic of an individual organism

a)

feature

b)

trait

c)

gene

d)

gene version

34.

An instruction for making a protein molecule

a)

gene

b)

ribosome

c)

blueprint

35.

Any difference in traits between individual organisms

a)

variation

b)

heterozygous

c)

homozygous

36.

A random change to a gene that sometimes results in a new trait

a)

mutation

b)

variation

c)

offspring

37.

The part of the cell where the genes are located

a)

ribosomes

b)

nucleus

c)

mitochondria

38.

The parts of the cell that build protein molecules based on instruction from genes

a)

ribosomes

b)

nucleus

c)

chromosomes

39.

Each person in a family has the same traits. There are no differences in traits between parents and offspring or among siblings.

a)

True

b)

False

40.

Traits, such as your hair or eye color, are determined by the proteins made by ribosomes in your body.

a)

True

b)

False

41.

There are two genes that decide each of your traits, and those two genes are always exactly alike.

a)

True

b)

False

42.

An offspring cannot have a trait if neither of its parents have it.

a)

True

b)

False

43.

One wildcat in a family has a mutation for tooth sharpness, which means that there must have been a change in the wildcat's:

a)

genes

b)

features

c)

traits

d)

family

44.

Which one(s) shows a heterozygous gene version:

a)

A1A1B1B1

b)

F2F2

c)

F1F3

d)

A1A1B1B2

45.

Organisms inherit their genes through...

a)

Mutation

b)

Evolution

c)

Sexual Reproduction

d)

Survival of the fittest.

46.

A specific form of a gene that provides instructions for making a particular protein molecule

a)

Gene version

b)

Allele

c)

Mutation

d)

A1A1

47.

Which one is an example of a "feature"?

a)

Long hair

b)

Hair color

c)

Brown hair

d)

Shape of foot

48.

Which one is an example of a "trait"?

a)

Red hair

b)

Eye color

c)

Shoe brand

d)

Shape of ear

49.
Which of the following is heterozygous
a)
FF
b)
tt
c)
Gg
d)
RR
50.
Which of the following is heterozygous
a)
Ww
b)
ii
c)
DD
d)
kk
51.

If you look more like your mom, then you received more genes from her.

a)

True

b)

False

52.

Otis has F1F1 for silk flexibility and Ruby has F2F1 for silk flexibility, what are all the different combinations of gene versions the offspring could inherit?

a)

F1F2

b)

F1F1

c)

F2F2

d)

F1F3

53.

An organism has (a)   copies of a gene for each feature.

54.

Genes are instructions for proteins, and each gene version provides a unique instruction to make a specific ___________ _____________ in an organism’s cells.

a)

DNA strand

b)

allele

c)

protein molecule

d)

variation

55.

________________ ____________ happen when one fertilized egg splits into two cells. The two cells have exactly the same genes.

a)

identical twins

b)

protein molecules

c)

gene versions

d)

homozygous genes

56.

If Leo the spider is homozygous for the feature of silk stickiness, which gene versions below would be possible for him?

a)

S2S3

b)

S2S1

c)

S2S2

d)

S1S4

57.

Which two offspring are heterozygous?

a)

A and B

b)

B and D

c)

B and C

d)

A and C

58.

Which of the following is the smallest?

a)

organism

b)

gene

c)

cell

d)

DNA

59.

Another way to say organism is...

a)

sexual reproduction

b)

dominant

c)

cell

d)

a living thing

60.

What percent of the flowers are homozygous?

a)

100%

b)

50%

c)

25%

d)

0%

Similar Resources on Wayground

U2 Expresión Gráfica

57 questions

U2 Expresión Gráfica

quiz

Worksheet

•

7th Grade

repaso 2do parcial

56 questions

repaso 2do parcial

quiz

Worksheet

•

7th Grade

G7 Science Review

61 questions

G7 Science Review

quiz

Worksheet

•

6th - 8th Grade

六年级科学复习

60 questions

六年级科学复习

quiz

Worksheet

•

6th Grade

Motion, Speed, Distance / Time Graphs

61 questions

Motion, Speed, Distance / Time Graphs

quiz

Worksheet

•

6th Grade

S2 Circuits Mid-unit Test

58 questions

S2 Circuits Mid-unit Test

quiz

Worksheet

•

8th - 10th Grade

Tema 3 kelas 6

60 questions

Tema 3 kelas 6

quiz

Worksheet

•

6th Grade

Mitosis Meiosis Test Review

60 questions

Mitosis Meiosis Test Review

quiz

Worksheet

•

5th - 11th Grade