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Worksheets

E.C. Biology

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the Diploid number for Humans

a)

46

b)

23

c)

12

d)

32

2.

What is a Gamete

a)

non-sex cell

b)

sex cell

c)

blood cell

d)

a pair of chromosomes

3.

A group of 3 bases in mRNA

a)

anti-codon

b)

triplet

c)

codon

d)

a pair

4.

Orb-

a)

above

b)

half

c)

circle

d)

around

5.

Which base pair is correctly paired

a)

A-G

b)

C-T

c)

G-T

d)

A-T

6.

What is the Haploid number for humans

a)

23

b)

12

c)

46

d)

21

7.

What is the Diploid number for Humans

a)

46

b)

23

c)

12

d)

32

8.

When was the origin of the earth

a)

5700 million years ago

b)

3800 million years ago

c)

2500 million years ago

d)

4600 million years ago

9.

Mutation

a)

Animals traveling from one habitat to another

b)

Differential survival and reproduction due to phenotype

c)

A change in DNA

d)

Change in allele frequency in a population due to random chance

10.

proteins are made up of chains of _____

a)

carbohydrates

b)

lipids

c)

amino acids

d)

phospholipids

11.

Who are the two scientists credited with figuring out the structure of DNA?

a)

Watson & Crick

b)

Einstein & Darwin

c)

Wilson & Carson

d)

Mendel & Curie

12.

saur-

a)

dino

b)

bone

c)

lizard

d)

before

13.

A Family has 4 Girls in a row. What is the possibility that their next child will be a girl

a)

75%

b)

20%

c)

50%

d)

100%

14.

pseudo-

a)

false

b)

before

c)

flow

d)

light

15.

Non-sex cells are also known as _____

a)

gametes

b)

histones

c)

AutoZones

d)

autosomes

16.

When did the modern man appear on the Earth?

a)

1.3 million years ago

b)

3 million years ago

c)

0.1 million years ago

d)

0.2 million years ago

17.

What are the sex chromosomes for a normal Male?

a)

XX

b)

XXY

c)

YY

d)

XY

18.

osis-

a)

water

b)

ancient

c)

first

d)

abnormal condition

19.

what are the normal sex chromosomes for a Female?

a)

XX

b)

XXY

c)

YY

d)

XY

20.

trans-

a)

write

b)

again

c)

staying

d)

across