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Science DNA

Total soal: 21

Worksheet time: 24mins

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1.

In DNA which is a correct base pairing?

a)

A with G

b)

G with T

c)

Beyonce and Jay Z

d)

A with T

2.
Changes in DNA sequences that affect genetic information are known as...
a)
Replication
b)
Mutations
c)
Transformation
d)
Translation
3.

The amount of Adenine present is always equal to the amount of ______

a)

cytosine

b)

guanine

c)

thymine

d)

uracil

4.
A trait that overpowers or hides another.
a)
trait
b)
dominant
c)
chromosomes
5.
These are made of DNA and carry the genes (humans have 46).
a)
genes
b)
trait
c)
chromosomes
6.
In a Punnett square, a capital letter stands for a _______ gene.
a)
heterozygous
b)
recessive
c)
dominant
7.

A trait that can be hidden.

a)

recessive

b)

dominant

trait

c)

dominant

d)

Elsa

8.

Which of the following is a phenotype?

a)

Aa

b)

red hair

c)

heterozygous

d)

DNA

9.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
10.

What is the correct base pairing to Cytosine

a)

Adenine

b)

Guanine

c)

Deoxyribose sugar

d)

Phosphate

11.

Trait

a)

the study of heredity

b)

a person's version of a allele

c)

a feature or characteristic of a person

d)

the passing of traits from parents to offspring

12.

phenotype

a)

a physical feature or characteristics of a person

b)

genes determine the tendency behaviorally

c)

a person's combination of alleles

d)

a person's version of a trait

13.

allele

a)

different versions of a gene

b)

represented by a capital letter

c)

a person's combination of alleles

d)

a feature or characteristic of a person

14.

genotype

a)

a person's combination of alleles

b)

different versions of a gene

c)

a person's version of a trait

d)

part of a person's DNA that influences a trait

15.
What are the nucleotides made of?
a)
Sugar, Phosphate, nitrogen base
b)
Phosphate, Adenine, nitrogen base
c)
Thymine, Adenine, Cytomine
d)
Phosphate, Nitrogen, Adenine
16.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
17.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
18.

Which organelle is DNA usually found in?

a)

cell membrane

b)

humans

c)

chloroplast

d)

nucleus

19.

The different forms of a gene is called

a)

DNA

b)

allele

c)

chromosome

d)

RNA

20.

When 2 alleles of a gene are different, it is called

a)

monozygous

b)

homozygous

c)

heterozygous

d)

polyzygous

21.

It occurs when both alleles are shown equally.

a)

asking your mom or dad which is the favorite child

b)

recessive

c)

codominance

d)

polygenetic