BIO 1100 Exam 3 Practice Questions and Correct Answers
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ECU BIO 1100
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ECU BIO 1100
When two haploid gametes fuse, the result is a diploid ________ zygote
Cancer cells exhibit two properties that distinguish them from normal cells. These properties are... Lack anchorage dependence Lack density inhibition Lack cell cycle checkpoints
The term used to describe a tumor spreads to ne...
BIO 1100 Exam 3 Practice Questions and
Correct Answers
When two haploid gametes fuse, the result is a diploid ________ ✅zygote
Cancer cells exhibit two properties that distinguish them from normal cells. These
properties are... ✅Lack anchorage dependence
Lack density inhibition
Lack cell cycle checkpoints
The term used to describe a tumor spreads to new locations within the body
✅metastatic
List 3 reasons Mendel's experiments with peas were successful. ✅Accurate records
Huge sample size
Unlinked characters
Botanical training
Math training
List the stages of mitosis in order, beginning with interphase. ✅Prophase
metaphase
anaphase
telophase
cytokinesis
True/False
Many anticancer drugs are derived from rain forest plants ✅True
Meiosis II is very similar to mitosis except that in meiosis II
a.chromosomes are not duplicated first
b.somatic cells are produced
c.homologous chromosomes exchange DNA via chiasmata
d.the final cells are diploid ✅a. Chromosomes are not duplicated first
What are two plant hormones that promote cell division?
a.Auxin and ATP
b.Auxin and cytokinin
c.Abscissic acid and ethylene
d.Xanthophyll and chlorophyll b ✅b. Auxin and cytokinin
During which phases of mitosis are chromosomes composed of two chromatids?
a.From G2 of interphase through metaphase
b.From interphase through anaphase
, c.From G1 of interphase through metaphase
d.From anaphase through telophase ✅a. From G2 of interphase through metaphase
Starting with a zygote, a series of two cell divisions would produce an early embryo with
how many cells? ✅Four
Which of the following is (are) true for alleles?
a.They can be identical or different for any given gene in a somatic cell
b.They can be dominant or recessive
c.They can represent alternative forms of a gene.
d.Only A and B are correct
e. A, B and C are correct ✅e. A, B and C are correct
A 3:1 phenotypic trait is characteristic of which of the following?
a. a monohybrid cross
b. a dihybrid cross
c. a trihybrid cross
d. linked genes ✅a. Monohybrid cross
When crossing a homozygous recessive with a heterozygote, what is the chance of
getting an offspring with the homozygous genotype?
a. 0%
b. 25%
c. 50%
d. 75%
e. 100% ✅c. 50%
The frequency of crossing over between any two linked genes is
a.determined by their relative dominance
b.the same as if they were not linked
c.higher if they are recessive
d.different between males and females
e.proportional to the distance between them ✅e. Proportional to the distance between
them
True/False
A linkage map can be used to identify the relative location of a gene ✅True
True/False
The gene required for male determination is the XIST gene ✅False
True/False
The chiasmata are involved in separating sister chromatids to opposite sides of a cell
during mitosis ✅False
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