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DNA Packaging and Chromosomes

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for making proteins
d)
because we eat it every day for energy
3.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
4.

Which choice best describes the DNA of a prokaryote?

a)

single circular chromosome

b)

single linear chromosome

c)

multiple circular chromosomes

d)

multiple linear chromosomes

5.

Which choice best describes the DNA of a eukaryote?

a)

single circular chromosome

b)

single linear chromosome

c)

multiple circular chromosomes

d)

multiple linear chromosomes

6.

Which of the following is NOT a benefit of DNA packaging?

a)

all of a cell's DNA can fit into the nucleus

b)

DNA is protected from damage

c)

genes can be accessed as-needed

d)

chromosomes can be reshuffled frequently

7.

A nucleosome is best described as

a)

nucleosomes coiled around each other

b)

a DNA strand wrapped around histone proteins

c)

one fully-packaged DNA molecule

d)

one strand of DNA double-helix

8.

Chromatin is best described as

a)

nucleosomes super-coiled around each other

b)

a DNA strand wrapped around histone proteins

c)

one fully-packaged DNA molecule

d)

one strand of DNA double-helix

9.

A DNA molecules is best described as

a)

nucleosomes super-coiled around each other

b)

a DNA strand wrapped around histone proteins

c)

one fully-packaged DNA molecule

d)

one strand of DNA double-helix

10.

DNA replication results in

a)

three identical copies of each chromosome

b)

23 different copies of each chromosome

c)

46 identical copies of each chromosome

d)

two identical copies of each chromosome

11.

The familiar X-shaped structure shown can be described as..... (Choose all that apply.)

a)

one chromosome

b)

one replicated chromosome

c)

two sister chromatids

d)

two different chromosomes stuck together

12.

Sister chromatids are joined together at a constriction called a

a)

chromatid

b)

centromere

c)

nucleosome

d)

spindle apparatus

13.

Chromosomes are made of... (Choose all that apply.)

a)

DNA

b)

proteins

c)

carbohydrates

d)

lipids