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LS - DNA & Traits basics - 1 - MS-LS3-1

Total questions: 35

Worksheet time: 53mins

Name
Class
Date
1.

How many chromosomes do humans have in all body cells?

a)

21

b)

46

c)

13

d)

47

e)

49

2.

Match the following

a)

DNA

1.

deoxyribonucleic acid

b)

chromosome

2.

thread-like structure made of DNA

c)

gene

3.

section of DNA that codes for a trait

d)

nucleus

4.

location of DNA in eukaryote

3.

Trait obtained from parents or other ancestors

a)

inherited trait

b)

acquired trait

4.

Identify the acquired traits.

*Select three

a)

large muscles

b)

ability to read

c)

hair color

d)

bilingual

e)

dimples

5.

Identify the inherited traits

a)

tongue-rolling

b)

color blindness

c)

cleft chin

d)

scars

e)

study skills

6.

Genes and traits from one's parents to one's offspring

a)

heredity

b)

acquired

c)

learned behavior

d)

skills

7.

compact form of DNA --- preparing for mitosis

a)

chromatin

b)

chromosome

8.

How do DNA bases pair together?

a)

thymine

1.

adenine

b)

adenine

2.

thymine

c)

cytosine

3.

guanine

d)

guanine

4.

cytosine

9.

A gene is a section of ___.

a)

DNA

b)

recessive

c)

acquired trait

d)

ATP

10.

DNA contains a code to make _____.

a)

protein

b)

ATP

c)

salt

d)

sodium

e)

carbon

11.

Genes are located in the _____ of cells.

a)

chromosomes

b)

cytoplasm

c)

chlorophyll

d)

cytosine

12.

Bundles of tightly coiled DNA

a)

Chromosome

b)

Genes

c)

Traits

d)

Nucleus

13.

Label the following terms: Cell, DNA, Chromosome, Nucleus, Gene

a)

Gene

b)

DNA

c)

Chromosome

d)

Nucleus

e)

Cell

1
2
3
4
5
1)
2)
3)
4)
5)
14.

What do each of the colored bands on the chromosome diagram represent? 

a)

DNA

b)

Cells

c)

Genes

15.

What is the structure of DNA?

a)

Single-Helix

b)

Double-Helix

c)

Triple-Helix

d)

X-Shaped

16.

How many pairs of chromosomes does everyone have?

a)

46

b)

16

c)

8

d)

23

17.

What is a characteristic of an organism that can be genetic or acquired?

a)

Mutation

b)

Cell

c)

Variant

d)

Trait

18.

The nucleotides that make up DNA (A, C, T, & G) are like...

a)

the ingredients in a recipe.

b)

the steps in directions.

c)

a map to follow.

d)

really cool and whatever.

19.
DNA is inside your cells. What part of the cell is the DNA inside of?
a)
cell membrane
b)
cytoplasm
c)
nucleus
20.

What is the scientific way of saying "DNA makes different things."?

a)

DNA is in our cells.

b)

DNA codes for specific proteins.

c)

DNA creates life.

d)

DNA is in every organism.

21.
How are similarities passed from parent to offspring?
a)
through teaching
b)
through learning
c)
through blood
d)
through genes
22.

If the DNA code is TAG, the matching base pairs are

(a)  

23.

If the DNA code is GGA, the matching base pairs are

(a)  

24.

If the DNA code is GTA, the matching base pairs are

(a)  

25.

Reorder -- Show how DNA and protein fit into the levels of organization.  

a)

Atom

b)

DNA

c)

organelle

d)

cell

1)
2)
3)
4)
26.

Reorder from smallest to biggest. -- Show how DNA fits into the levels of organization.  

a)

b)

c)

d)

1)
2)
3)
4)
27.

Which bases are only found in DNA? **Pick 4.

a)

Thymine

b)

Cytosine

c)

Adenine

d)

Uracil

e)

Guanine

28.

DNA is a(n)

a)

atom

b)

molecule

c)

nucleus

d)

cell

29.

A DNA molecule is shaped like a

a)

toilet

b)

cone

c)

ball

d)

spiraled ladder

30.

Most chromosomes are shaped like the letter

a)

Q

b)

W

c)

P

d)

X

31.

DNA acts like a(n )__________________ for our traits.

a)

instruction manual

b)

nucleus

c)

cell

d)

gene

32.

We acquire (get) our inherited traits from our

a)

biological parents

b)

neighbors

c)

friends

d)

pets

33.

Offspring means

a)

a child, baby or kid

b)

the off/on switch on a flashlight

c)

a spring that goes off

d)

an unusually warm spring

34.

A chromosome is made of coiled up ___________.

a)

cells

b)

nuclei

c)

DNA

35.

DNA is a(n)

a)

atom

b)

molecule

c)

nucleus

d)

cell

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