|
|
Based on the results of this cross, you determine that _____. (Activity 15A) 
|
| round eyes are dominant to vertical eyes, and the absence of a tooth is dominant to the presence of a tooth |
| round eyes are dominant to vertical eyes, and the presence of a tooth is dominant to the absence of a tooth |
| the allele for round eyes is linked to the allele for no tooth |
| vertical eyes are dominant to round eyes, and the absence of a tooth is dominant to the presence of a tooth |
| vertical eyes are dominant to round eyes, and the presence of a tooth is dominant to the absence of a tooth |
|
|
|
The results of the following cross indicate that the _____. (Activity 15A) 
|
| absence of a tooth is dominant to the presence of a tooth |
| two genes are linked |
| MendAlien species is polyploid |
| absence of a tooth is dominant to vertical eyes |
| two genes assort independently |
|
|
|
An F1 individual can produce _____ different gametes when both eye and tooth genes are considered. (Activity 15A) 
|
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
|
|
|
Given these chromosomes, which of the choices represents the possible recombinant gametes? (Activity 15A) 
|
|  |
|  |
|  |
|  |
|  |
|
|
|
The results of a F1
testcross are: 250 bald head, four ears : 247 hairy head, six ears : 21 bald
head, six ears : 19 hairy head, four ears. How many map units apart are the
head and ear genes? (Activity 15A)
|
| 3.5 |
| 3.9 |
| 7.5 |
| 50.5 |
| 92.6 |
|
|
|
Which of the individuals is homozygous recessive for both of the gene pairs? (Activity 15A) 
|
| the female parent |
| the male parent |
| the F1 generation |
| both the male and female parents |
| both the male parent and the F1 generation |
|
|
|
The results of the following cross indicates that the _____. (Activity 15A) 
|
| absence of a tooth is dominant to the presence of a tooth |
| two genes are linked |
| MendAlien species is polyploid |
| absence of a tooth is dominant to vertical eyes |
| two genes assort independently |
|
|
|
The
recombination frequency between gene A and gene B is 8.4%, the recombination
frequency between gene A and gene C is 6.8%, and the recombination frequency
between gene B and gene C is 15.2%. Which of these is the correct arrangement
of these genes? (Activity 15A)
|
| ABC |
| ACB |
| BCA |
| CAB |
| CBA |
|
|
|
A
color-blind woman mates with a male with normal color vision. Which of these
results would indicate that color blindness is caused by an X-linked recessive
allele? (Activity 15B)
|
| Half of the sons and half of the daughters are color-blind. |
| All of the daughters, and none of the sons, are color-blind. |
| All of the sons, and none of the daughters, are color-blind. |
| The offspring occur in a ratio of 3 color-blind : 1 normal vision. |
| The
offspring occur in a ratio of 9 normal vision males : 3 color-blind vision
males : 3 normal vision females : 1 color-blind female. |
|
|
|
Color
blindness is an X-linked recessive trait. A color-blind man has a daughter
with normal color vision. What is the genotype of the daughter? (Activity 15B)
|
| XCXc |
| XCXC |
| XcXc |
| XCY |
| XcY |
|
|
|
Color
blindness is an X-linked recessive trait. A color-blind man has a daughter
with normal color vision. She mates with a male who has normal color vision.
What is the expected phenotypic ratio of their offspring? (Activity 15B)
|
| 1 normal vision female : 1 color-blind female : 1 normal vision male : 1 color-blind male |
| All the offspring have normal color vision. |
| 2normal vision females : 1 normal vision male : 1 color-blind male |
| 3 normal vision female : 1 color-blind male |
| 1 normal vision female : 1 color-blind male |
|
|
|
Color
blindness is an X-linked recessive trait. A color-blind man has a daughter
with normal color vision. She mates with a color-blind male. What is the
expected phenotypic ratio of their offspring? (Activity 15B)
|
| All the offspring have normal color vision. |
| 2 normal vision females : 1 normal vision male : 1 color-blind male |
| 3 normal vision female : 1 color-blind male |
| 1normal vision female : 1 color-blind female : 1 normal male : 1 color-blind male |
| 1 normal vision female : 1 color-blind male |
|
|
|
Color
blindness is an X-linked recessive trait. A woman who is homozygous for normal
color vision mates with a color-blind male. What is the expected phenotypic
ratio of their offspring? (Activity 15B)
|
| 2 normal vision females : 1 normal vision male : 1 color-blind male |
| 3 normal vision female : 1 color-blind male |
| All the offspring have normal color vision. |
| 1 normal vision female : 1 color-blind female : 1 normal male : 1 color-blind male |
| 1 normal vision female : 1 color-blind male |
|
|
|
Color
blindness is an X-linked recessive trait. A color-blind woman mates with
a male with normal color vision. What is the expected phenotypic ratio of
their offspring? (Activity 15B)
|
| 1 normal vision female : 1 color-blind female : 1 normal male : 1 color-blind male |
| 1normal vision daughter : 1 color-blind son |
| 2 normal vision females : 1 normal-vision male : 1 color-blind male |
| 3 normal vision female : 1 color-blind male |
| All the offspring have normal color vision. |
|
|
|
Color blindness is an X-linked recessive trait. Under what conditions can an unaffected male have a color-blind daughter? (Activity 15B)
|
| His mate is color-blind. |
| He can't. |
| He is heterozygous for color vision. |
| His father is color-blind. |
| His mother is color-blind. |
|
|
|
Hypophosphatemia
(vitamin D-resistant rickets) is inherited as an X-linked dominant. An unaffected
woman mates with a male with hypophosphatemia. What is the expected phenotypic
ratio of their offspring? (Activity 15B)
|
| 1 normal female : 1 female with hypophosphatemia : 1 normal male : 1 male with hypophosphatemia |
| 1 normal daughter : 1 son with hypophosphatemia |
| 1daughter with hypophosphatemia : 1 normal son |
| 2 normal females : 1 normal male : 1 male with hypophosphatemia |
| 3 normal female : 1 male with hypophosphatemia |
|
|
|
Hypophosphatemia
(vitamin D-resistant rickets) is inherited as an X-linked dominant. A woman
without hypophosphatemia and a man with hypophosphatemia have a daughter.
The daughter mates with a male without hypophosphatemia. What is the expected
phenotypic ratio of their offspring? (Activity 15B)
|
| 2 unaffected females : 1 unaffected male : 1 male with hypophosphatemia |
| 1unaffected female : 1 female with hypophosphatemia : 1 unaffected male : 1 male with hypophosphatemia |
| 1 unaffected daughter : 1 son with hypophosphatemia |
| 1 daughter with hypophosphatemia : 1 unaffected son |
| 3 unaffected females : 1 male with hypophosphatemia |
|
|
|
Suppose
that having three nostrils is a Y-linked character. A woman with two nostrils
mates with a man with three nostrils. What is the expected phenotypic ratio
of their offspring? (Activity 15B)
|
| 1daughter with two nostrils : 1 son with three nostrils |
| 1 daughter with two nostrils: 1 daughter with three nostrils: 1 son with two nostrils : 1 son with three nostrils |
| 2 daughters with two nostrils: 1 son with two nostrils: 1 son with three nostrils |
| 2 daughters with three nostrils: 1 son with two nostrils: 1 son with three nostrils |
| 2 sons with two nostrils: 1 daughter with two nostrils: 1 daughter with three nostrils |
|
|
|
Humans are diploid and have 46 chromosomes (or two sets). How many sets of chromosomes are found in each human gamete? (Activity 15C)
|
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
|
|
|
Humans are diploid and have 46 chromosomes. How many chromosomes are found in each human gamete? (Activity 15C)
|
| 12 |
| 23 |
| 36 |
| 45 |
| 92 |
|
|
|
_____ is the process by which haploid gametes form a diploid zygote. (Activity 15C)
|
| Embryogenesis |
| Meiosis |
| Gastrulation |
| Fertilization |
| Mitosis |
|
|
|
A
particular diploid plant species has 48 chromosomes, or two sets. A mutation
occurs and gametes with 48 chromosomes are produced. If self-fertilization
occurs, the gametes will have _____ set(s) of chromosomes. (Activity 15C)
|
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
|
|
|
Which of these terms applies to an organism with extra sets of chromosomes? (Activity 15C)
|
| monosomy |
| haploid |
| trisomy |
| polyploid |
| diploid |
|
|
|
Mutant tetraploid plants _____. (Activity 15C)
|
| are usually sickly |
| are able to interbreed with their parents |
| have an odd number of chromosomes |
| are unable to interbreed with a diploid plant |
| unable to self-fertilize |
|
|
|
Most polyploid plants arise as a result of _____. (Activity 15C)
|
| self-fertilization |
| a mutation of gamete formation |
| meiosis |
| mitosis |
| hybridization |
