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Biology Unit 6: structure and functions of nucleic acids

Total questions: 28

Worksheet time: 33mins

Name
Class
Date
1.

_____ : macromolecules that store and carry genetic information

a)

Nucleic Acids

b)

DNA

c)

RNA

d)

Adenine

2.

Types of Nucleic Acids (4) :

a)

  1. DNA

b)

DeoxyriboNucleic Acid

c)

RNA

d)

RiboNucleic Acid

e)

ATP

3.

the molecule that stores the genetic information for all organisms

a)

DNA: Deoxyribonucleic Acid:

b)

RNA - RiboNucleic Acid

c)

Protein

4.

TRUE OR FALSE: DNA does NOT act alone to pass genetic information

a)

TRUE

b)

FALSE

5.

DNA is heritable:

a)

can be passed from parent to offspring 

Codes for your traits

b)

can be passed from offspring to parent

Codes for their traits

6.

Central Dogma of Molecular Biology:

a)

DNA → RNA→PROTEIN

b)

RNA → PROTEIN→DNA

c)

PROTEIN→DNA→RNA

7.

DNA ___ LEAVES THE NUCLEUS of A CELL

a)

ALWAYS

b)

NEVER

c)

SOMETIMES

8.

DNA is a _a._ that is made of _b_

a)

a. nucleic acid

b)

b. nucleotides

c)

b. nucleic acid

d)

a. nucleotides

9.

A nucleotide is made of 3 parts:

a)

Phosphate Group

b)

Deoxyribose Sugar

c)

Nitrogenous Base

d)

Amino Acids

e)

Chromosomes

10.

The 4 Nitrogenous Bases in DNA Nucleotides:

a)

CYTOSINE

b)

THYMINE

c)

ADENINE

d)

GUANINE

e)

Phosphate

11.

PYRIMIDINES: 1 ring structure

a)

CYTOSINE

b)

THYMINE

c)

ADENINE

d)

GUANINE

e)

Phosphate

12.

PURINES: 2 rings structure

a)

CYTOSINE

b)

THYMINE

c)

ADENINE

d)

GUANINE

e)

Phosphate

13.

___ : complementary base pairs will be in equal concentrations for  the DNA of any organism

a)

Chargaff’s Rules

b)

Franklin's Rules

c)

Harwin's Rules

14.

Nucleotides fit together by pairing ___ Adenine + Thymine, Cytosine + Guanine

a)

Nitrogenous bases

b)

Hydrogen bonds

c)

N-glycosidic bond

d)

Phosphodiester bond

15.

Circle the hydrogen bond:

16.

Circle the N-Glycosidic bond:

17.

Circle the Phosphodiester bond:

18.

Circle 2 purines:

19.

Circle 2 pyrimidines:

20.

Circle a nucleotide:

21.

Circle the backbone:

22.

(blue portion)shows alternating deoxyribose sugar and phosphate groups

a)

Backbone

b)

Rungs/Steps

c)

DOUBLE HELIX

23.

: nitrogenous bases, contains the “code” for proteins

a)

Backbone

b)

Rungs/Steps

c)

DOUBLE HELIX

24.

DNA is shaped like a ___ (twisted ladder)

a)

Backbone

b)

Rungs/Steps

c)

DOUBLE HELIX

25.

There are 2 hydrogen bonds that hold ___ and ___

a)

Adenine and Thymine

b)

Guanine and Cytosine

26.

There are 3 hydrogen bonds that hold ___ and ___

a)

Adenine and Thymine

b)

Guanine and Cytosine

27.

DNA in prokaryotics the a single circular strand is found in the cytoplasm since there ___

a)

is a nucleus

b)

is no nucleus

28.

Chromesomes are made of DNA and proteins called

a)

Nucleosomes

b)

Histones

c)

Chromatin