Chapter 15, Transmission of Genetic Information from Parents to Offspring I: Patterns that Follow Mendel’s Laws Video Solutions, Principles of Biology

Problem 1

Experimental advantages of using pea plants included which of the following?
a. They came in several varieties.
b. They were capable of self-fertilization.
c. They were easy to cross.
d. Their anthers could be removed prior to pollination.
e. All of the above were advantages.

Evey Z

Numerade Educator

02:43

Problem 2

Which of the following phenomena cannot be deduced from a single-factor cross?
a. Mendel's law of segregation
b. dominant/recessive relationships
c. Mendel's law of independent assortment
d. incomplete dominance
e. All of the above can be observed in a single-factor cross.

Kathleen Jerome

Numerade Educator

00:36

Problem 3

A $T t$ plant is crossed to $a t t$ plant. What is the expected outcome for the ratio of offspring from this cross?
a. 3 tall : 1 dwarf
b. 1 tall : 1 dwarf
c. 1 tall : 3 dwarf
d. 2 tall : 1 dwarf
e. 1 tall : 2 dwarf

Anna Miller

Numerade Educator

01:16

Problem 4

A cross is made between a pea plant that is $\operatorname{Rr} Y y$ and a plant that is $r Y Y y$. What is the predicted outcome of the seed phenotypes?
a. 9 round, yellow : 3 round, green : 3 wrinkled, yellow : 1 wrinkled, green
b. 9 round, green : 3 wrinkled, green : 3 round, yellow: 1 wrinkled, yellow
c. 3 round, yellow : 3 round, green : 1 wrinkled, yellow : 1 wrinkled, green
d. 3 round, yellow : 1 round, green : 3 wrinkled, yellow : 1 wrinkled, green
e. 1 round, yellow : 1 round, green : 1 wrinkled, yellow : 1 wrinkled, green

Parvati Devi

Numerade Educator

03:04

Problem 5

A pea plant has the genotype $T I R r$. The independent assortment of these two genes occurs at because chromosomes with the alleles line up independently of the alleles.
a. metaphase of meiosis $1, T$ and $t, R$ and $r$
b. metaphase of meiosis I, $T$ and $R, t$ and $r$
c. metaphase of meiosis II, $T$ and $t, R$ and $r$
d. metaphase of meiosis II, $T$ and $R, t$ and $r$
e. metaphase of mitosis, $T$ and $t, R$ and $r$

Hailey Ames

Numerade Educator

01:33

Problem 6

Which of the following would not be observed in a pedigree if a genetic disorder was inherited in a recessive manner?
a. Two unaffected parents have an affected offspring.
b. Two unaffected parents have an unaffected offspring.
c. Two affected parents have an unaffected offspring.
d. One affected and one unaffected parent have an unaffected offspring.
c. All of the above are possible for a recessive disorder.

Joanna Quigley

Numerade Educator

03:13

Problem 7

A woman does not show symptoms of hemophilia A. She has a son with a man with hemophilia, and that son does have hemophilia. Their next child is a daughter. What is the probability that this daughter will have hemophilia?
a. $100 \%$
b. $75 \%$
c. $50 \%$
d. $25 \%$
e. $0 \%$

Kathleen Jerome

Numerade Educator

02:18

Problem 8

A gene that affects more than one trait is said to be
a. dominant.
d. pleiotropic.
b. wild-type.
e. heterozygous.
c. dihybrid.

Kathleen Jerome

Numerade Educator

00:58

Problem 9

A hypothetical flowering plant species produces blue, light blue, and white flowers. To determine the inheritance pattern, the following crosses were conducted with the results indicated:
blue $\times$ blue $\rightarrow$ all blue
white $\times$ white $\rightarrow$ all white
blue $\times$ white $\rightarrow$ all light blue
What type of inheritance pattern does this represent?
a. simple Mendelian
d. incomplete dominance
b. X-linked
e. pleiotropy
c. codominance

Win Griffith

Numerade Educator

01:45

Problem 10

Genes located on one sex chromosome but not the other are said to be
a. X-linked.
c. hemizygous.
e. autosomal.
b. dominant.
d. sex-linked.

Kathleen Jerome

Numerade Educator