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genetics

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.
A characteristic that is passed from parent to offspring
a)
inherited trait
b)
chromosome
c)
pedigree
d)
DNA
2.
One of the threadlike structures in the nucleus of a cell that contain directions for the cell's activities
a)
variation
b)
pedigree
c)
DNA
d)
chromosome
3.
A chart that traces the history of traits in a particular family
a)
DNA
b)
pedigree
c)
chromosome
d)
variation
4.
Deoxyribonucleic acid, a long, complex molecule that controls heredity
a)
inherited trait
b)
chromosome
c)
DNA
d)
pedigree
5.
The passing of inherited traits from parents to offspring
a)
acquired traits
b)
inherited traits
c)
heredity
d)
genetics
6.
Ability to to ride a motorcycle
a)
inherited triat
b)
acquired trait
c)
genes
d)
Keelan
7.
Characteristics that are passed down from parents to offspring.
a)
Manners
b)
Acquired Traits
c)
Money
d)
Inherited Triats
8.

Genotype or Phenotype: Black hair

a)

Phenotype

b)

Genotype

9.

Homozygous or Heterozygous: ff

a)

Homozygous

b)

Heterozygous

10.

Two identical alleles for a trait is known as

a)

homozygous

b)

heterozygous

c)

mutation

d)

codominance

11.

A physical appearance is

a)

genotype

b)

heterozygous

c)

phenotype

d)

codominance

12.

A mutation is harmful to an organism if it

a)

changes the phenotype of an organism

b)

changes the DNA segment

c)

reduces the organism's chance of survival

d)

makes the organism better able to avoid predators

13.

In a Punnett square, a lower case letter stands for a ____________ allele.

a)

dominant

b)

recessive

c)

homozygous

d)

heterozygous

14.
In a punnet square where are the parent alleles written?
a)
Top and inside the boxes
b)
Only on the left and right side of the boxes. 
c)
outside of the boxes (top and left side)
d)
All on the top side of the boxes
15.
Are recessive traits shown with capital or lowercase letters? 
a)
Capital
b)
Lowercase
16.
G = dominant green and y = recessive yellow
A fish has a Gy genotype, what will its phenotype be?
a)
yellow
b)
green
c)
greenish-yellow
d)
red
17.

xx-xy type of sex determination is found in

a)

human beings

b)

many other mammals

c)

amphibia

d)

some fishes

18.

In case of honey bee,the mechanism of sex determination is of

(a)  

19.

In which insect among the following,the female is heterogametic ?

a)

Queen bee

b)

Butterfly

c)

Grasshopper

d)

Cockroach

20.

Write the name of scientist

a)

Gregor Mendel

b)

Darwin

c)

Lamark

d)

none of the above

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