wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Heredity, Reproduction, & Traits (Reagan W)

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.

The study of heredity is called _____.

a)

Traits

b)

Genetics

c)

DNA

d)

Genes

2.

The passing of genetic traits from parent to offspring or from one generation to the next is called ___.

a)

Heredity

b)

Genotype

c)

Inherited traits

d)

Phenotype

3.

What type of genetic information is passed from parent to offspring?

a)

Genes

b)

Chromosomes

c)

DNA

d)

Allele

4.

Name the type of reproduction that allows genetic information to be passed from parent to offspring?

a)

Heredity

b)

Asexual reproduction

c)

Sperm

d)

Sexual reproduction

5.

List the two types of sex cells:

a)

Egg

b)

Zygotes

c)

Sperm

d)

Allele

6.

List two examples of organisms that have sperm and egg as sex cells:

a)

Fungi

b)

Bacteria

c)

Plants

d)

Animals

7.

How much genetic material do the sex cells carry apiece?

a)

23 chromosomes

b)

46 chromosomes

c)

23 alleles

d)

46 alleles

8.

The structure found in the nucleus of a cell that contains the genetic information is the ____.

a)

Allele

b)

DNA

c)

Chromosome

d)

Gene

9.

What does DNA stand for?

a)

Deoxyribonuclic acid

b)

Defoxyribonucleic acid

c)

Dieoxyribonuclec acid

d)

Deoxyribonucleic acid

10.

When DNA coils, what does it form? (spiral ladder shape)

a)

Double spiral

b)

Double helix

c)

Helix

d)

Triple spiral

11.

Long strands of DNA make up _____?

a)

Alleles

b)

Egg cell

c)

Genes

d)

Chromosomes

12.

A segment “part” of DNA found on a chromosome that contributes to the inheritance of a particular trait is called ___.

a)

Nucleus

b)

Alleles

c)

Genes

d)

Heredity

13.

What is responsible for the inherited characteristics that distinguish one individual from another?

a)

Phenotype

b)

Genotype

c)

Chromosomes

d)

Genes

14.

Genes that contribute to a specific trait normally come in pairs. What is one gene from the pair of genes called?

a)

Allele

b)

Chromosome

c)

DNA

d)

Genotype

15.

What is the set of genes carried by the organism?

a)

Phenotype

b)

Genotype

16.

What is the physical expression “what you see“ of the genes?

a)

Pheonotype

b)

Genotype

17.

Characteristics that are passed from parent to offspring are called ______.

a)

Acquired traits

b)

Inherited traits

c)

Heredity

d)

Dominant trait

18.

Which is NOT an example of an inherited trait?

a)

Eye color

b)

Hair type

c)

Soccer skills

d)

Face shape

19.

Which one is the version of a trait that will be expressed regardless of the other allele(s) that is(are) present?

a)

Dominant trait

b)

Recessive trait

20.

Which one is the version of a trait that will only be expressed if two recessive alleles are present?

a)

Dominant trait

b)

Recessive trait

21.

How are alleles for dominant traits represented or written?

a)

Capital letters

b)

Lowercase letters

22.

How are alleles for recessive traits represented or written?

a)

Capital letters

b)

Lowercase letters

23.

What does it mean that the offspring has two copies of the dominant allele or two copies of the recessive allele?

a)

Homozygous, TT or tt

b)

Heterozygous, Tt

24.

Which one means that the offspring has one copy of the dominant allele (trait) and one copy of the recessive allele (trait)?

a)

Homozygous, TT or tt

b)

Heterozygous, Tt

25.

What is the name given to two copies of the dominant allele?

a)

Homozygous dominant

b)

Homozygous recessive

26.

What is the name given to two copies of the recessive allele?

a)

Homozygous dominant

b)

Homozygous recessive