WorksheetsCAT II - STAAR REVIEW
Total questions: 15
Worksheet time: 14mins
Name
Class
Date
1.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
2.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
3.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
4.
Which of the following is the blueprint for the production of RNA within a cell?
a)
DNA
b)
protein
c)
ATO
d)
carbohydrate
5.
What molecules do both DNA and RNA contain?
a)
uracil
b)
nucleotides
c)
thymine
d)
deoxyribose
6.
DNA sequence is ACAGTG. How would this be coded on mRNA?
a)
TGTCAC
b)
UGUCAC
c)
GUGACA
d)
CACUGU
7.
Genetic info flows in one direction. Which best represents the CENTRAL DOGMA?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
8.
The diagram shows the process of
a)
Transcription
b)
Translation
c)
Replication
d)
Mitosis
9.
What nitrogen base is in DNA but NOT RNA?
a)
uracil
b)
thymine
c)
guanine
d)
adenine
10.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
11.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
12.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
13.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
14.
Structure A refers to the _____.
a)
chromatid
b)
chromosome
c)
centromere
15.
How many chromosomes do humans have?
a)
46
b)
21
c)
10
100 %
