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Science 08 Genetics

Total questions: 21

Worksheet time: 16mins

Name
Class
Date
1.

What is the study of life called?

(a)  

2.

hybrid

a)

a mix of alleles from its parents

b)

a clone of its parents

c)

a mix of two hybrid parents

d)

only recessive alleles

3.

dominant trait

a)

the trait that doesn't show

b)

the trait that shows

4.

recessive trait

a)

the trait that doesn't show

b)

the trait that shows

5.

hybrid cross

a)

two purebred parents

b)

one purebred parent and one hybrid parent

c)

two hybrid parents

d)

no parents

6.

heredity

a)

the study of how traits are passed from one generation to the next

b)

the study of humans

c)

the study of organisms

7.

Punnett square

a)

a chart that shows all the possible combinations of alleles that can result from a genetic cross

b)

a square that shows all the different kinds of Kylas

c)

the answer to all of life's questions

8.

Circle the dominant allele

9.

Circle the recessive allele

10.

What is a phenotype

a)

the physical characteristics of an organism

b)

the hidden characteristics of an organism

11.

What is a genotype

a)

the hidden characteristics of an organism

b)

the trait that shows

12.

Heterozygous: two different alleles

a)

True

b)

False

13.

physical characteristics of an organism

(a)  

14.

genetic makeup of an organism

(a)  

15.

incomplete dominance

a)

both alleles are blended together

b)

both alleles are there, but separated

c)

another name for clone

16.

codominance

a)

both phenotypes are blended together

b)

we see both phenotypes, but they aren't blended

c)

when 2 or more genes interact to control a single character

17.

polygenic inheritance

a)

when 2 or more genes interact to control a single character

b)

belief in multiple gods

18.

artificial selection

a)

when we purposely alter the ratio of alleles to favor one phenotype

b)

the change of alleles

19.

genetic drift

a)

the change in ratios of alleles in a population over time

b)

an inherited trait that helps the animal survive and reproduce

c)

favoring a certain phenotype

20.

Which one is not true?

a)

trait: specific characteristic

b)

purebred: always produce descendants with the same trait

c)

hybrid cross: a cross between a hybrid and a purebred

d)

homozygous: same alleles

21.

What are the Principles of Heredity?

a)

In a cross of purebred parents, all offspring will show the dominant trait.

b)

For any one character, the 2 alleles will separate and combine to determine offspring trait.

c)

A parent passed each allele to its offspring independently of all other alleles.

d)

All of the above