Biology Practice Exam 3
Mrs. Vehrs
Cell Division
Definitions: Write the word for the process or definition below.
1.
This process produces reproductive cells (eggs and sperm).
2.
This is the process of duplicating the nucleus in preparation of cell division.
3.
This word means “cell division”.
4.
This is the process of cutting the chromosome number in half.
Draw a sketch representing each of the phases of mitosis listed below. (Note: they aren’t in order!)
5.
metaphase
6.
anaphase
7.
interphase
8.
prophase
9.
telophase
10. The purpose of mitosis is to ____________________________________________________
11. In a monohybrid cross, there are as many as __________ possible gametes for each parent.
12. In order to determine whether a pea plant showing the dominant round pea appearance was
heterozygous or homozygous, you could ______________________________________________
13. If Mendel had studied traits located on the same chromosomes, he would not have been able to
_______________________________________________________________________
a.
get parents pure (homozygous) for a trait.
b.
study two traits at the same time.
c.
develop his law of independent assortment.
d.
determine which traits were dominant.
Analyze-Monohybrid crosses. In each of the following crosses, choose the word or phrase which best
answers each question. Mark the letter of your choice on your answer sheet. You may work out the
problem using a Punnett Square.
A homozygous black dog is crossed with a homozygous white dog. Black is dominant.
14. The genotype of all the offspring is _____________
A heterozygous tall pea plant is crossed with a homozygous short plant.
15. The phenotype ratio is ________________
16. The genotype ratio is ________________
In certain plants, violet flowers are dominant to white. A violet flowered plant is crossed with a
white flowered plant. The offspring all produce white flowers.
17. The genotype of the violet flowered plant was _________
The violet flowered plant in the above problem is crossed to another violet flowered plant. The
offspring again produce white flowers.
18. The genotype of the second violet flowered plant was ________________
19. The purpose of meiosis is to ______________
DNA/RNA. Name the following processes.
20. DNA copies itself
21. DNA codes for RNA
22. RNA codes for amino acids
23. Give 3 differences between DNA and RNA.
24. Explain why you have DNA and where it is found.
25. Name the 3 types of RNA and tell what they do.
26. If one side of a DNA sequence is GTC CTA GGC TCC AGT, what is the sequence of the
complementary side?
27. What is the mRNA sequence for the same DNA sequence?
28. What is the amino acid sequence coded by it?
Sketch the following phases of meiosis. (Note: they aren’t in order!)
29. metaphase I
30. anaphase I
31. metaphase II
32. prophase II
33. telophase I