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