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SC9 U2-Q3 DNA, Chromosomes ver.II

Total questions: 19

Worksheet time: 3570secs

Name
Class
Date
1.

Which of the following describes the shape of a DNA molecule?

a)

double helix

b)

sphere

c)

pyramid

d)

rectangle

2.

Name this structure

a)

double helix

b)

nucelotide

c)

twisted ladder

d)

hydrogen bond

3.

Why is DNA important?

a)

It gives each cell instructions on how to do its job.

b)

It is what the cell membrane is made of.

c)

It helps the cell use water.

d)

It is food for the cell.

4.

In the DNA alphabet, T always pairs with:

a)

A

b)

T

c)

G

d)

C

5.

In the DNA alphabet, C always pairs with:

a)

A

b)

C

c)

T

d)

G

6.

Many letters make a "sentence" that the cell understands. This "sentence" is called a:

a)

Gene

b)

Helix

c)

Phosphate

d)

Codon

7.

A gene tells the cell how to make a __________.

a)

Sugar

b)

Phosphate

c)

Protein

d)

Ribosome

8.

The FULL NAME of the letter A from the DNA alphabet is:

a)

Adenine

b)

Albertine

c)

Augmentium

d)

Arginine

9.

If one strand of DNA says GCT, the other strand says:

a)

GCT

b)

CTA

c)

CGA

d)

TCG

10.
A DNA nucleotide contains all of the following, except...
a)

Deoxyribose / Sugar

b)
Phosphate group
c)
Nitrogenous base
d)

Chromatin

11.
What is the backbone of DNA made of?
a)
Nitrogen bases
b)
Amino acids
c)
Double H
d)
Sugar & Phosphate
12.

What are loosely packed combination of DNA and proteins (histones)?

a)

chromatin

b)

chromatids

c)

chromosomes

d)

dna

13.

The super condensed form of DNA

a)

chromatid

b)

chromatin

c)

chromosome

d)

gene

14.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
15.

From smallest to largest how would genetic information be organized?

a)

genes, cell, nucleotide, nucleus, chromosome, DNA

b)

nucleotide, chromosome, cell, gene, DNA, nucleus

c)

DNA, nucleotide, gene, chromosome, nucleus, cell

d)

nucleus, cell, gene, DNA, nucleotide, chromosome

e)

nucleotide, DNA, gene, chromosome, nucleus, cell

16.

DNA stands for d_______________ a___ (spell every letter from the beginning including the 'space'!)

(a)  

17.

The X shaped chromosomes are described as:

a)

Two sister chromatids

b)

Two non-sister chormatids

c)

One chromatid

d)

Chromatin

18.

What does number 3 represent

a)

Chromatin

b)

Centromere

c)

Centriole

d)

chromosome

19.

What are genes?

a)

Pants

b)

Specific traits

c)

Sections of DNA arranged along the chromosomes

d)

Chromosomes