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DNA structure and function
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DNA structure and function
Your Name:
1) Who discovered the structure of DNA?
Watson and Click
Wilson and Crick
Watson and Crick
All of the above
2) What does structure of DNA mean?
the shape of
what it is made of
how the molecules are arranged
All of the above
3) What does DNA stand for?
ribonucleic acid
deribonucleic acid
deoxyribonucleic acid
Doesn't Need Acid
All of the above
4) What are the sides of the DNA molecule made up of?
base pairs
alternating sugars and phosphates
base pairs and hydrogen bonds
genes and chromosomes
All of the above
5) What does it mean to replicate?
divide
copy
mutate
unzip
All of the above
6) What are the rungs of the DNA ladder made up of?
sugars and phosphates
nitrogen base pairs
nucleotides
hydrogen
All of the above
7) What is the first step of DNA replication?
The parent DNA molecule untwists
The parent DNA molecule unzips
Free floating nucleotide bases bond to the exposed bases
Two new daughter molecules
All of the above
8) What is the second step of DNA replication?
The parent DNA molecule untwists
The parent DNA molecule unzips
Free floating nucleotide bases bond to the exposed bases
Two new daughter molecules
none of the above
All of the above
9) DNA can be found in what 3 parts of the cell?
nucleus, mitochondria, chloroplast
nucleus, cytoplasm, ribosome
mitochondria, chloroplast, ribosome
All of the above
10) Adenine, Cytosine, Guanine, and Thymine are called what?
sugars
phosphates
nitrogen bases
nucleotide bases
All of the above
11) How is RNA different from DNA?
RNA is smaller
RNA doesn't have thymine
RNA has ribose instead of deoxyribose
RNA is single stranded where DNA is double stranded
RNA moves around the cell; DNA does not leave the nucleus
all of the above
12) What nitrogen base pairs with T?
A
C
G
U
All of the above
13) How does the ribosome know what proteins to make?
the RNA tells it
the DNA tells it
the endoplasmic reticulum
All of the above
14) What is a blueprint?
a photo that is blue
when you use blue pen to write
a drawing/plan for building a house
a picture of a house
All of the above
15) Why is DNA referred to as the "Blueprint of Life"?
DNA are the instructions for building an organism
DNA is like a picture
DNA has blue letters in it
DNA is made of the bases A, T, C, and G
All of the above
16) What is the relationship between DNA and genes?
DNA contains many genes
there are about 30,000 genes in our DNA
Genes are segments of DNA
all of the above
17) What is the relationship between genes and chromosomes?
chromosomes contain genes
genes are found in chromosomes
DNA contain genes and chromosomes contain DNA
all of the above
18) The Human Genome is
the complete set of genes
the complete set of proteins
the complete set of DNA, including genes and junk DNA
30,000 feet tall
a double helix
All of the above
19) We have about 30,000...
genes in our genome.
feet of typed out information encoded in our genome.
amino acids
a and b only
b and c only
All of the above
20) Proteins
help build an organism (muscles, skin, bone etc.)
help reactions happen in organisms
are only found in meat
none of the above
a and b
All of the above
21) Why would realizing that DNA is a double helix earn two men the
Nobel prize?
Knowing the shape helps explain how DNA copies in mitosis
Knowing the shape helps explain how DNA copies for meiosis
Knowing that it is two sided explains how it can make copies
Knowing how DNA can replicate helps explain heredity
Knowing how DNA can replicate explains how species change
Understanding DNA's shape shows that all life is related
ALL OF THE ABOVE!
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Last Modified: Thursday, December 03, 2009
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