The allele for brown hair colour (B) is dominant over the allele for blonde hair (b). The father of a son with brown hair is homozygous for brown hair. His mother has blonde hair. Use a schematic labelled diagram to illustrate this data up to the F1 generation. QUESTION 8 8.1 (Use the key: B- brown andb- blonde) 8.2 If this son marries a blonde woman, draw the cross diagram to show the possible offspring of brunettes (brown hair) and blondes (blonde hair). 8.2.1 What is the probability (in %) that their children will be brunettes? 8.2.2 What is the probability (in %) that their children will be blondes? 8.2.3 What % of the children will be homozygotes? 8.3 If there was no probability of this son and the blonde woman having a blonde child what would the son's genotype be? Explain your answer. QUESTION 9 A red carnation and a white carnation were cross-pollinated. All the plants that grew from this cross had pink flowers. 9.1 Explain this phenomenon. Explain, using a Punnett diagram, whether the red and white carnations were heterozygous or homozygous. 9.2 QUESTION 10 A male cat is homozygous for black fur colour. He mates with a white female cat, which is also homozygous for fur colour. Their five kittens are all grey. There are three males and two females. One of the grey female cats mates with a male from the same litter. Use B for black and W for white fur to answer the following questions. 10.1 Which phenomenon caused all kittens of the first litter to be grey? Explain. 10.2 Indicate the... 10.2.1 genotypic ratio; and 10.2.2 genotypic percentage (%) of the second litter. 10.3 Indicate the... 10.3.1 phenotypic ratio; and 10.3.2 phenotypic percentage (%) of the second litter. 10.4 What % of kittens do not look like their mother or father? 10.5 What would the phenotypic % of the second litter be if black fur is dominant or white fur? 1.64
The allele for brown hair colour (B) is dominant over the allele for blonde hair (b). The father of a son with brown hair is homozygous for brown hair. His mother has blonde hair. Use a schematic labelled diagram to illustrate this data up to the F1 generation. QUESTION 8 8.1 (Use the key: B- brown andb- blonde) 8.2 If this son marries a blonde woman, draw the cross diagram to show the possible offspring of brunettes (brown hair) and blondes (blonde hair). 8.2.1 What is the probability (in %) that their children will be brunettes? 8.2.2 What is the probability (in %) that their children will be blondes? 8.2.3 What % of the children will be homozygotes? 8.3 If there was no probability of this son and the blonde woman having a blonde child what would the son's genotype be? Explain your answer. QUESTION 9 A red carnation and a white carnation were cross-pollinated. All the plants that grew from this cross had pink flowers. 9.1 Explain this phenomenon. Explain, using a Punnett diagram, whether the red and white carnations were heterozygous or homozygous. 9.2 QUESTION 10 A male cat is homozygous for black fur colour. He mates with a white female cat, which is also homozygous for fur colour. Their five kittens are all grey. There are three males and two females. One of the grey female cats mates with a male from the same litter. Use B for black and W for white fur to answer the following questions. 10.1 Which phenomenon caused all kittens of the first litter to be grey? Explain. 10.2 Indicate the... 10.2.1 genotypic ratio; and 10.2.2 genotypic percentage (%) of the second litter. 10.3 Indicate the... 10.3.1 phenotypic ratio; and 10.3.2 phenotypic percentage (%) of the second litter. 10.4 What % of kittens do not look like their mother or father? 10.5 What would the phenotypic % of the second litter be if black fur is dominant or white fur? 1.64
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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QUESTION 8
8.1
(Use the key: B - brown and b - blonde)
bi
If this son marries a blonde woman, draw the cross diagram to show the possible
8.2
offspring of brunettes (brown hair) and blondes (blonde hair),
8.2.1 What is the probability (in %) that their children will be brunettes?
8.2.2 What is the probability (in %) that their children will be blondes?
es of the
8.2.3 What % of the children will be homozygotes?
If there was no probability of this son and the blonde woman having a blonde child:
8.3
what would the son's genotype be? Explain your answer.
QUESTION 9
A red carnation and a white carnation were cross-pollinated. All the plants that grew
from this cross had pink flowers.
n have the
acteristic in this
9.1
Explain this phenomenon.
e F1 generation?
9.2
Explain, using a Punnett diagram, whether the red and white carnations were
heterozygous or homozygous.
QUESTION 10
A male cat is homozygous for black fur colour. He mates with a white female cat, which is
also homozygous for fur colour. Their five kittens are all grey. There are three males and
two females. One of the grey female cats mates with a male from the same litter. Use B for
black and W for white fur to answer the following questions.
e.
e...
fly?
10.1 Which phenomenon caused all kittens of the first litter to be grey? Explain.
ration and the
10.2 Indicate the...
10.2.1 genotypic ratio; and
n are indicated?
10.2.2 genotypic percentage (%) of the second litter.
10.3 Indicate the...
10.3.1 phenotypic ratio; and
10.3.2 phenotypic percentage (%) of the second litter.
10.4 What % of kittens do not look like their mother or father?
tios to be the same?
10.5 What would the phenotypic % of the second litter be if black fur is dominant or
white fur?
a all be the same?
1.64
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