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Biology - Chapter 5 Test

30 Questions  I  By Trsonline
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1.  In the case of a sex-linked trait, which of the following could not happen?
A.
B.
C.
D.
2.  The study of heredity is called
3.  A histone is a protein that helps protect and maintain the shape of a chromosome.
A.
B.
4.  A test cross involves mating an organism that has an unknown genotype but dominant phenotype with
A.
B.
C.
D.
5.  Which of these is a difference between mitosis and meiosis?
A.
B.
C.
D.
6.  The human diploid chromosome number is
A.
B.
C.
D.
7.  An example of a species characteristic in humans would be
A.
B.
C.
D.
8.  The principle of genetics involved when one gene in a pair masks or prevents the expression of the other is called the principle of
A.
B.
C.
D.
9.  In which phase of mitosis are the sister chromatids aligned at the center of the mitotic spindle?
10.  In which phase of mitosis do the chromosomes begin to coil in the nucleus?
11.  In codominance, the individual expresses both alleles with no blending of traits.
A.
B.
12.  In what phase of mitosis does the centrosome divide and migrate to the opposite poles?
13.  A carrier of a sex-linked trait has the gene and exhibits the physical characteristics of the trait.
A.
B.
14.  Possessing a pair of different alleles for one trait is the
A.
B.
C.
D.
15.  Section of a chromosome that code for a trait are called
A.
B.
C.
D.
16.  When two haploid gametes unite, they form a diploid cell called a/an
A.
B.
C.
D.
17.  For a simple dominant and recessive characteristic, a cross between organisms of genotypes Bb and Bb will produce offspring that all have the same phenotype.
A.
B.
18.  The scientist who established the first laws and principles of heredity was
19.  What is the second phase of the cell cycle?
20.  Hair and eye color, body build, and facial features are inherited and are called
A.
B.
C.
D.
21.  What is the third phase of the cell cycle?
22.  Multiple gene interaction occurs when several different sets of genes work together to produce a single trait.
A.
B.
23.  The exchange of genetic material between homologous chromosomes during meiosis is
A.
B.
C.
D.
24.  Asexual reproduction takes place in all the following except
A.
B.
C.
D.
25.  For a simple dominant and recessive characteristic, a cross between organisms of genotypes AA and aa will produce offspring that all have the same genotype.
A.
B.
26.  What is the first phase of the cell cycle?
27.  In which phase of mitosis do the kinetochore fibers pull the sister chromatids apart?
28.  A condition in which both alleles of a heterozygous condition is expressed is
A.
B.
C.
D.
29.  A gene is a section of DNA that can produce a particular polypeptide chain of amino acids and thereby cause a trait.
A.
B.
30.  A chart showing the phenotype of the individuals in several generations of a family is a
A.
B.
C.
D.
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