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Biology 1401 Chapter 12 Patterns Of Inheritance

35 Questions  I  By Vlgarza08
Biology 1401 Chapter 12 Patterns of Inheritance

  
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1.  A diploid organism that has two identical alleles for the same trait is called _______ for that particular trait.
A.
B.
C.
D.
E.
2.  A gene for a particular trait that is only expressed in the presence of another gene of the same kind is called a(n)
A.
B.
C.
D.
E.
3.  Mendel chose the garden pea for his work on inheritance for all of the following reasons except
A.
B.
C.
D.
4.  Mendel's experiments had all of the following characteristics except
A.
B.
C.
D.
5.  Mendel referred to the trait that was expressed in the hybrid, F1 or first filial generation as
A.
B.
C.
D.
E.
6.  In a typical Mendel experiment on pea-seed color, if the dominant yellow seed-bearing plant was crossed with the recessive green seed-bearing plant, the F2 generation will show what ratio of each kind?
A.
B.
C.
D.
E.
7.  Mendel's understanding of the inheritance of traits in peas, expressed in modern language, included all of the following except
A.
B.
C.
D.
E.
8.  When the two haploid gametes contain two different alleles of a given gene, the resulting offspring is called
A.
B.
C.
D.
E.
9.  In a heterozygous individual the allele being expressed is
A.
B.
C.
D.
E.
10.  An allele that is present but unexpressed is
A.
B.
C.
D.
E.
11.  The allelic make up of an individual is referred to as its
A.
B.
C.
D.
12.  The observable outward manifestation of the genes of an individual is referred to as its
A.
B.
C.
D.
13.  What is the name of the cross that involves the mating of a hybrid F1 plant with a homozygous recessive plant for the same trait?
A.
B.
C.
D.
E.
14.  Yellow-seeded plants might be homozygous or heterozygous. We could find out which by crossing these plants with
A.
B.
C.
D.
E.
15.  Mendel's first law encompasses all of the following except
A.
B.
C.
D.
16.  An individual possessing both kinds of alleles of two different traits is called
A.
B.
C.
D.
E.
17.  Let P = purple flowers and p = white, and T = tall plants and t = dwarf. What would be the appearance of a plant with the genotype PpTt?
A.
B.
C.
D.
E.
18.  Let P = purple flowers and p = white, and T = tall plants and t = dwarf. What combinations of gametes could be produced by a heterozygote for both the traits?
A.
B.
C.
D.
E.
19.  Let P = purple flowers and p = white, and T = tall plants and t = dwarf. Of the 16 possible gamete combinations in the dihybrid cross, how many would be the phenotype white, tall?
A.
B.
C.
D.
E.
20.  Mendel's observations that different pairs of genes assort independently of each other is known as Mendel's
A.
B.
C.
D.
E.
21.  One of the main reasons genes assort independent of one another is that
A.
B.
C.
D.
E.
22.  A single gene has 3 or more alternative forms. These are called
A.
B.
C.
D.
E.
23.  Sometimes one gene pair will interact so as to control the expression of a second gene pair in an interaction called
A.
B.
C.
D.
E.
24.  If an individual allele has more than one effect on the phenotype it is said to be
A.
B.
C.
D.
E.
25.  ABO blood group expression is an example of
A.
B.
C.
D.
E.
26.  When Mendel crossed dark purple-flowered pea plants with white-flowered pea plants, he never got any pea plants with light purple flowers. This was counter to the
A.
B.
C.
D.
E.
27.  When Mendel crossed two purple-flowered pea plants with each other, he obtained a phenotypic ratio of 3:1 (purple-flowered pea plants to white-flowered pea plants). His results are consistent with which of the following sets of parents?
A.
B.
C.
D.
E.
28.  Height and eye colors are two examples of continuous variation in humans. Whereas in pea plants the tall allele is dominant over the short allele, there are no intermediate heights in peas. Which of the following is the best explanation for the differences described above?
A.
B.
C.
D.
E.
29.  Which blood could be safely given to anyone?
A.
B.
C.
D.
30.  Choose the letter of the best match from the following: A. genotype B. heterozygote C. homozygote D. phenotype
A. The totality of the alleles present in an organism.
A.
B. The observable expression of the genes present.
B.
C. A diploid individual whose two copies of a given gene are the same.
C.
D. A diploid individual carrying two different alleles on its homologous chromosomes.
D.
31.  How many different types of gametes can be formed by plants with a genotype of PPTt?
A.
B.
C.
D.
32.  Let Y = yellow and y = green, and R = round and r = wrinkled. You cross YYRR peas with yyrr peas. All of the F1 individuals are yellow and round with a genotype of YyRr. You then perform a F2 cross and get the expected 9:3:3:1 phenotypic ratio. Which of the following is the correct genotypic ratio for yellow, round F2 individuals?
A.
B.
C.
D.
33.  Let R = red pigment and r = no pigment. In carnations, RR offspring make a lot of red pigment, rr offspring make no pigment and Rr offspring make a small amount of red pigment, thus appearing pink. Pink carnations are therefore an example of
A.
B.
C.
D.
34.  You can use a Punnet square to do all of the following except
A.
B.
C.
D.
35.  As a genetic counselor, you are constructing a human pedigree for a particular disease. You note that every generation shows the trait, suggesting that it is
A.
B.
C.
D.
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