BIOL 104 Test 5 11/22/11
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1. How many chromosome pairs does a human have?
@23 B.25 C.46 D.50 E. 92
2. In a karyotype the chromosomes are arranged in order from
A. argest to smallest, with the sex chromosomes at the end.
B. smallest to largest, with the sex chromosomes at the end.
C. largest to smallest, including the sex chromosomes.
D. smallest to largest, including the sex chromosomes.
3. Two sister chromatids are held together at the 0entromere.
B. spindle.
C. aster.
4. What are the two parts of the cell cycle?
A. apoptosis and interphase
B. mitosis and cytokinesis
C. nucleus and cytoplasm
D.mitosis and meiosis @interphase and cell division
5. Which of the following is not a stage of interphase?
@ytokinesis
B. G1
C.G2 D.S
6. Which comes first: mitosis or cytokinesis? @mitosis
B. cytokinesis
yHow are mitosis and cytokinesis alike? A. Both involve the nucleus.
@Both involve mitochondria.
C. Both involve division.
D. Both involve apoptosis.
E. Both involve DNA synthesis.
8. During development from a zygote to a child, what cell division process occurs? @nitosiS
B. meiosis
9. At which stage of mitosis do you first see the chromosomes appearing?
G prophase
B. metaphase
C. anaphase
D. telophase
10. In which two phases of mitosis does the nuclear membrane appear/disappear?
A. prophase and metaphase
B. metaphase and anaphase
C. prophase and anaphase
D.anaphase and telophase E. rophase and telophase
~In meiosis there are how many divisions and how many daughter cells?
A. 1,2
B.1,4 C.2,2 D.2,4
@,8
y{ In which stage of meiosis do homologous chromosomes separate from each other? A. metaphase I
@etaphase II
C. anaphase I
D. anaphase II
E. interkinesis
13. When do the centromeres qivide in meiosis?
A. prophase I
B. prophase II
C.anaphase I c§)naphase II E. telophase I
14. If the parent cell has 24 chromosomes, and each of the daughter cells has 24 chromosomes, then the cell
has undergone
c1Qmitosis.
B. meiosis.
15. Which division of meiosis is like mitosis? A. meiosis I
(§>meiosis II
16. I n what way is spermatogenesis similar to oogenesis?
A. Both occur continuously from puberty on.
B. Both result in 4 daughter cells.
@Both result in cells with half the chromosome number.
D. Both are arrested in prophase I.
E. Both result in 1 or 2 polar bodies.
0he product(s) of meiosis I in spermatogenesis is/are
@primary spermatocytes.
B. secondary spermatocytes.
C. spermatids.
D. spermatazoa.
18. Which of the following terms refers to the genes of an individual?
~genotype
B. phenotype
C. gamete
D. probability
E. autosomal
19. Which of the following individuals has a recessive phenotype? AM
B.Aa
C.AaBb
~aabb
YWhiCh ofthe following is a dominant allele?
AA
B.a
@M
D.ab E. Ab
21. There are two different alleles for the number of fingers on the hands: 5 finger allele and 6 finger allele.
When both the 5 finger allele and the 6 finger allele are present in the same individual, the individual has 6
fingers on the hands. Which allele is dominant?
A 5 fingers
@fingerS
22. Which of the following genotypes is heterozygous?
(j)Aa
A.
B.Ab C. aB D.ab
23. There is a single gene that controls the ability to taste PTC paper. The ability to taste is
dominant to the inability to taste. If you can taste the paper, it is very bitter. Which of the following
genotypes can taste the paper?
A. only PP
@ooth PP and Pp
C. both PP and pp
D. only Pp
E. only pp
24. Clasp your hands together (without thinking about it). Which thumb is on top? The
dominant phenotype is left thumb on top. If you have the genotype "tt", which thumb is
on top?
A. left
G)right
46'ln a cross of Ff x Ff, the probability of havil)~ a dominant phenotype is
~
F-ILY,/4. ,B. 1/3.
( rf F(
f!
D.2/3. E.3/4.
26. In a cross of Ss x Ss, the probability of having a heterozygous
genotype is
B. 1/3.
@1I2.
J >~ I
D.2/3.
5 5 C -S ~5
-/ --'
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\ < r- f I rf
27. In a cross of a homozygous dominant parent and a homozygous recessive parent, what is the ratio of
offspring that will exhibit the recessive phenotype?
(90.
II
B.1/4. /
C.1/2. -t- [~ f r;
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28. In a dihybrid cross, what is the probability that the offspring will exhibit both of the dominant phenotypes?
A. 1/16.
B.3/16.
C.6/16.
@9/16.
E. 1.
r;n the inheritance of skin color example in the book, which genotype would have the same phenotype as AaBb?
@ABB B.AABb :::at dEB'
D. AAbb
E. Aabb
~here is a trait with two alleles. One allele codes for blue while the other allele codes for yeilow. If this trait is
inherited in a codominant manner, what color will the offspring be?
A. blue
B.yellow @green
D. blue and yellow striped
31. If a person with type B blood marries a person with type A blood, what phenotypes can their children be?
A all type A
B. all type B
C. types A and 0
D.types Band 0 @114typeS
,r Which of the following designations indicates a sex-linked trait? AA
@fA
C.XB
D.a E. i
Y Which of the following represents the genotype of a male who is color-blind? A XBXB
B. XB)(b
C. )(b)(b
D.)(bY @XBY
rA male receives his X linked alleles from his A mother.
@father.
r1f a mother is color-blind and her husband is not, which of the following children are not possible? A normal
daughter
B. normal son
@olor-blind son
B.
C.
Y What is the genotypic ratio?
38. What is the phenotypic ratio?
39.
Complete a Punnett Square for~J~o WWSS X wwss 0 uJ LJ
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0.s LJ..5 t-V.! w LJ ''';
/ What is the genotypic ratio? ?( What is
the phenotypic ratio?
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