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Worksheets

Genetics and Heredity Review

Total questions: 18

Worksheet time: 5hrs 30mins

Name
Class
Date
1.

The chemical code in DNA is formed from

a)

How nitrogenous bases are arranged

b)

How sugars & bases are arranged

c)

How phosphates & sugars are arranged

d)

How chromosomes are arranged

2.

The reason why DNA is crucial to living things is that:

a)

DNA is what holds the genetic code for organisms

b)

DNA is shaped like a spiral helix

c)

DNA can keep people from getting sick

d)

DNA can break apart

3.

Which of these pictures shows the correct structure for DNA?

a)
b)
c)
d)
4.

If scientists manipulated the genes of a tomato plant so it would grow cube-shaped tomatoes, what would this be an example of?

a)

Genetic engineering

b)

Trait extraction

c)

DNA replication

d)

Chromosome mutation

5.

Which of the following was Rosalind Franklin's contribution to the study of genetics & heredity?

a)

Taking X-ray pictures that showed the structure of a DNA molecule

b)

Studying pea plants to see how traits were passed from parents to offspring

c)

Developing the first correct 3D model of a DNA molecule

6.

Which of the following was Gregor Mendel's contribution to the study of genetics & heredity?

a)

Taking X-ray pictures that showed the structure of a DNA molecule

b)

Studying pea plants to see how traits were passed from parents to offspring

c)

Developing the first correct 3D model of a DNA molecule

7.

Which of the following was Watson & Crick's contribution to the study of genetics & heredity?

a)

Taking X-ray pictures that showed the structure of a DNA molecule

b)

Studying pea plants to see how traits were passed from parents to offspring

c)

Developing the first correct 3D model of a DNA molecule

8.

What is the correct rule for matching up nitrogenous base pairs?

a)

C goes with G, and A goes with T

b)

T goes with C, and G goes with A

c)

T goes with G, and A goes with C

d)

I before E, except after C

9.

____________________ is commonly referred to as "The Father of Genetics."

a)

Gregor Mendel

b)

Charles Darwin

c)

Anton van Leeuwenhoek

d)

Emmett Brown

10.

What are these?

a)

Chromosomes

b)

Mitochondria

c)

Phenotypes

d)

Boogers

11.

In this diagram, which letter highlights a section of genetic code in a DNA molecule?

a)

A

b)

B

c)

C

12.

Gregor Mendel said that traits he saw in pea plants were caused by "factors" that the plants got from each parent. What do we call these "factors" today?

a)

Genes

b)

Phenotypes

c)

Chromosomes

d)

Boogers

13.

If a person carries a gene for brown hair and a gene for red hair, the brown hair gene will push out/cancel out the red hair gene, and the person will have brown hair.


What scientific term would you use to describe the red hair gene?

a)

Recessive

b)

Dominant

c)

Incomplete

d)

Redundant

14.

Complete this analogy: Brown and blue are different kinds of eye color, just like _____________________________.

a)

Alleles are different kinds of genes

b)

Genes are different kinds of chromosomes

c)

Chromosomes are different kinds of ribosomes

d)

Atoms are different kinds of cells

15.

The letter combination that represents what genes for a certain trait that an organism carries is called the ________________.

a)

Genotype

b)

Phenotype

c)

Blood type

d)

NPC type

16.

The exact trait expressed in an organism based on what combination of genes they carry is called the ________________.

a)

Genotype

b)

Phenotype

c)

Blood type

d)

NPC type

17.

In this punnett square (with brown hair represented by B & blonde hair represented by b), what percentage of offspring would have blonde hair?

a)

50%

b)

100%

c)

75%

d)

0%

18.

What letter code combinations would the parents have to have in order to produce offspring like the ones shown in this punnett square?

a)

Ww & Ww

b)

ww & ww

c)

WW & Ww

d)

VW & BMW