DNA Quiz 4

1. The diploid cells of an animal have 44 chromosomes. How many chromosomes would you expect to find in the animal's sperm cells?
22
44
88
2

2. Down's Syndome occurs when an invidual has:
an extra chromosome 21
a missing chromosome
an extra set of homologs
haploid cells

3. After examining a karyotype of an animal, a researcher counts 50 individual chromosomes of varying sizes. How many homologs are in the karyotype?
25
50
100
200

4. Chromosomes are paired together based on their:
size
banding pattern
centromere location
all of these

5. Chromosomes line up on the equator during:
anaphase
telophase
metaphase
interphase

6. The purpose of mitosis is to:
create new cells
copy DNA
cellular repair
reproduction

7. What did Frederick Griffith's discover?
DNA carried genetic information
bacteria could transform
mice died when exposed to viruses
viruses were encapsulated

8. What was the overall conclusion of the hershey-chase experiment
DNA was responsible for heredity
proteins and DNA were responsible for heredity
the ratio of Adenine to thymine was always the same
phage DNA was similar to bacterial DNA

9. The 5' and 3' numbers are related to the:
length of the DNA strand
carbon rings in sugar
the number of phosphates
the base pair rule

10. Okazaki fragments occur during:
transformation
replication
polymerase reaction
synthesis

Score =
Correct answers: