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Worksheets

Genetics

Total questions: 24

Worksheet time: 13mins

Name
Class
Date
1.

This trait is developed later in life:

a)

acquired

b)

inherited

c)

mutated

2.

What is an allele?

a)

a cell that contains two sets of chromosomes, one from each parent

b)

twisted “ladder” shape of DNA

c)

different forms of a gene

3.

What is a chromosome?

a)

the passing of traits from parent to offspring

b)

thread-like structures within the nucleus that are made up of DNA

c)

passed down from parent to offspring

4.

DNA is:

a)

a nucleic acid that passes from parent to child in the form of a chemical code

b)

a trait that will always show up in the organism if the allele is present

c)

the scientific study of heredity

5.

A dominant trait is:

a)

sections of DNA that control specific traits

b)

passed down from parent to offspring

c)

a trait that will always show up in the organism if the allele is present

6.

The scientific study of heredity is called:

a)

genetics

b)

DNA

c)

traits

7.

A genotype is:

a)

passed down from parent to offspring

b)

the combination of alleles an organism inherits

c)

a permanent change in the genetic code

8.

What is heredity?

a)

a permanent change in the genetic code

b)

the likelihood or chance of something happening

c)

the passing of traits from parent to offspring

9.

Heterozygous is:

a)

a genotype that has two identical alleles for the same gene

b)

a genotype that has two different alleles for the same gene

c)

a permanent change in the genetic code

10.

Homozygous is:

a)

a genotype that has two identical alleles for the same gene

b)

a genotype that has two different alleles for the same gene

c)

a trait that is controlled by multiple genes

11.

An inherited trait is:

a)

acquired by study or repetition

b)

developed later in life

c)

passed down from parent to offspring

12.

A learned trait is:

a)

acquired by study or repetition

b)

developed later in life

c)

passed down from parent to offspring

13.

What is a mutation?

a)

a permanent change in the genetic code

b)

a trait that is controlled by multiple genes

c)

the likelihood or chance of something happening

14.

Traits influenced by nature are impacted by:

a)

environmental factors

b)

genetic factors

c)

multiple genes

15.

Trait influenced by nurture are impacted by:

a)

environmental factors

b)

genetic factors

c)

multiple genes

16.

What is a phenotype?

a)

the visible traits an organism exibits based on the alleles it inherits

b)

the process of DNA duplication

c)

to multiply or make more of something

17.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
18.
In the punnett square shown, what is the genotypes of the two parents?
a)
RW and RR
b)
RW and WW
c)
RR and WW
d)
RW and RR
19.

What is a recessive trait?

a)

to multiply or make more of something

b)

a trait that will always show up in the organism if the allele is present

c)

a trait that will always be hidden if the dominant allele is present

20.

A trait is:

a)

physical characteristics of an organism

b)

a permanent change in the genetic code

c)

passed down from parent to offspring

21.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
22.

A phenotype is:

a)

The genetic make up (code)

b)

The physical trait

23.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
24.
Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short