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DNA
Test Description: Quick Regents practice review on genes and chromosomes.
Instructions: Answer all questions to get your test result.
1) What type of bonds are in between strands of DNA?
A
ionic bonds
B
james bonds
C
hydrogen bonds
D
covalent bonds
2) What do you call a subunit of DNA containing only three letters?
A
a triplet
B
a helix
C
a codon
D
a trifecta
3) What type of sugar is in a DNA molecule?
A
maltose
B
deoxyribose
C
glucose
D
ribose
4) What can nitrogenous bases also be called?
A
phosphates
B
ribose
C
you know, those things
D
nucleic acids
5) What will always pair with cytosine?
A
adenine
B
guanine
C
uracil
D
thymine
6) How many chromosomes does a NORMAL human being have?
A
8
B
6
C
46
D
48
7) If the sperm of a Drosophila contains 4 chromosomes, how many chromosomes do all of its other cells have?
A
46
B
2
C
8
D
4
8) What does RNA have that DNA doesn't?
A
cytosine
B
adenine
C
thymine
D
uracil
9) Which goes in order of increasing complexity?
A
allele, chromosome, gene
B
chromosome, gene, allele
C
allele, gene, chromosome
D
chromosome, allele, gene
10) DNA is made of
A
all of the above
B
sugars
C
proteins
D
phosphates
*select an answer for all questions
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