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WorksheetsCFA Week 24
Total questions: 22
Worksheet time: 29mins
Who was the Austrian monk that experimented on pea plants and is called the "father of genetics"? (a)
Mendel's Law of Segregation means?
Every person has two alleles for each trait, they segregate from each other and the dominant is passed more often.
Every person has two alleles for each trait, Where two traits are being passed, they do not effect each other.
Every person has two alleles for each trait, they segregate from each other and are passed down at random.
Every person has two alleles for each trait, they segregate from each other and the recessive is passed more often.
What is Mendel's Law of Independent Assortment?
If the recessive allele is passed for one trait, then it is more likely that the recessive allele will be passed for the other trait.
The passing of allele of one trait does not affect the passing of allele of another trait.
If the dominant allele is passed for one trait, then it is more likely that the dominant allele will be passed for the other trait.
If the dominant allele is passed for one trait, then it is more likely that the recessive allele will be passed for the other trait.
The same gene can come in different versions, the different versions of a gene are called
(a)
The following physical descriptions are (a) hair color, eye color, height.
The following alleles are examples of (a) : Tt, Mm and Gg
Match the following combinations of alleles:
Homozygous dominant
DD
Homozygous recessive
dd
Heterozygous
Dd
What are the possible genotypes for this cross?
TT = 25% Tt= 50% tt=25%
all tall
TT= 75% tt = 25%
Tt = 100%
If in horses a long mane (M) is dominant over a short mane (m), what is the probability of the offspring having a short mane in a cross between a heterozygous horse with a long mane and a homozygous recessive horse with a short mane?
0%
25%
50%
75%
100%
In Walruses if long tusks (T) is dominant over short tusks (t), what is the probability of the offspring having short tusks in a cross between two heterozygous long-tusked walruses?
0%
25%
50%
75%
100%
What is the genotype that should be in the blank square?
yyRr
YYRR
yyrr
YrYr
When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....
Incomplete Dominance
Codominance
Snap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (WW)? What color are flowers that are RW?
Red and white spotted
Red
Pink
White
When a red flowered plant (RR) is crossed with a white flowered plant (WW), it can express a pink (RW) petal color. If we crossed a Red flower with a pink flower, What percentage of the offspring will have pink (RW) flowers?
0%
25%
50%
100%
The hair gene shows in incomplete dominance. The genotype SS means straight hair, the genotype CC means curly hair, and the genotype SC means wavy hair.
Mr. And Mrs. Michalicka have wavy hair (SC). What percentage of their children will also have curly hair (CC)?
25%
50%
75%
100%
When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....
Incomplete Dominance
Codominance
Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring represented in this P square will be calico (black and tan spotted)?
25%
50%
75%
100%
In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette (black and white spotted).
Two erminette chickens (BW) were crossed. What percent of their offspring would have black feathers?
0%
25%
50%
75%
100%
In shorthorn cattle, when a red bull (RR) is crossed with a white cow (WW), all the offspring are a spotted roan, a red and milky red color (RW).
What is the phenotypic ratio for the offspring from mating a spotted roan bull and a spotted roan cow?
25% RR: 50% RW: 25% WW
50% RR: 50% WW
75% RR: 25% WW
All RW
