1) a. If 25% of a population exhibits an autosomal recessive trait, statistically, the number of...
1) a. If 25% of a population exhibits an autosomal recessive trait, statistically, the number of individuals in this same population who will be heterozygous is what?
b. If 36% of a population are known to be homozygous dominant for a trait, the number of individuals in this population who will be heterozygous are what?
c. The number of individuals in this same population who will express the recessive phenotype is what?
Homework Answers
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1) a. If 25% of a population exhibits an autosomal recessive
trait, statistically, the number of...
7. The frequency for ocular albinism is one in 200 in the Hopi population. What percentage of the...
7. The frequency for ocular albinism is one in 200 in the Hopi population. What percentage of the individuals within this population will be in the homozygous dominant state? What is the approximate percentage of individuals who are in the heterozygous state? 8. In a certain population, one in 16 million (16,000,000) females is affected with factor VilI hemophilia How many males in this same population will be affected with this same condition? 9. Approximately one in 15,000 individuals in...
Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A...
Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004 Assuming that this population is under Hardy- Weinberg equilibrium, calculate all allele frequencies and genotype frequencies. Enter your numerical answers in the boxes below. Express each answer to four decimal places. Frequency of A1: Frequency of A2: Frequency of homozygous dominant: Frequency of homozygous recessive: Frequency of heterozygous
6 A human trait that is caused by an autosomal dominant mutant allele has a penetrance...
6
A human trait that is caused by an autosomal dominant mutant allele has a penetrance of 50%. A man who is heterozygous for this mutant allele marries a woman who is homozygous recessive for the normal allele. If they have two children then what is the probability that both children will show the normal phenotype? O 1/4 o 1/2 03/16 0 7/8 09/16
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What...
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What is the genotype of a brown-eyed woman who has a blue-eyed child? A)bb -B)Bb С)ВВ D)BBB E) BbBb 8) The ability to roll the edges of the tongue upward in a U-shape is inherited as a dominant allele at a single gene locus, Which of the following genotypes would produce an individual that can roll their tongue? A)TT only B)Tt only C) only D)TT...
07.900 Thi 3. Le 1. You have sampled a population in which you know that the...
07.900 Thi 3. Le 1. You have sampled a population in which you know that the percentage of the homove recessive genotype(a) is 36%. Using that 36%, calculate the following: A. The frequency of the "sa" genotype. B. The frequency of the altele. 80 C. The frequency of the "A"allele. D. The frequencies of the genotypes "A" and "Aa." 3-12ft ocity of the The frequencies of the two possible phenotypes if 'Ais completely dominant over "a. opactisol the derivatives in...
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes....
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
1)Dimples is a dominant trait and represented as “D”. No Dimples is a recessive trait and...
1)Dimples is a dominant trait and represented as “D”. No Dimples is a recessive trait and represented as “d”. The dimples/no dimples alleles follow Mendelian genetics. What is the genotype of an individual who is heterozygous for the dimples trait? Dd DD dd Dimples No dimples 2) Dimples is a dominant trait and represented as “D”. No Dimples is a recessive trait and represented as “d”. The dimples/no dimples alleles follow Mendelian genetics. Person A has dimples and is homozygous...
2. Assume a population is in Hardy-Weinberg equilibrium for a given genetic autosomal trait. What proportion...
2. Assume a population is in Hardy-Weinberg equilibrium for a given genetic autosomal trait. What proportion of individuals in the population are heterozygous for the gene if the frequency of the recessive allele is 1%.
If 9% of the population cannot taste PTC (a recessive trait), what is the frequency of...
If 9% of the population cannot taste PTC (a recessive trait), what is the frequency of the non-taster allele in the population? What is the frequency of the taster allele? What percentage of the population will be homozygous dominant? What percentage of the population will be heterozygous?
Which of the statements about incomplete dominance are true? 1) Heterozygous individuals have the same phenotype...
Which of the statements about incomplete dominance are true? 1) Heterozygous individuals have the same phenotype as homozygous dominant individuals. 2) Heterozygous individuals have a phenotype intermediate to the homozygous dominant and homozygous recessive phenotypes. 3) Heterozygous individuals express both the homozygous dominant and homozygous recessive phenotypes. 4) If homozygous dominant mice have black fur, and homozygous recessive mice have white fur, then heterozygous mice have gray fur.
7. The frequency for ocular albinism is one in 200 in the Hopi population. What percentage of the individuals within this population will be in the homozygous dominant state? What is the approximate percentage of individuals who are in the heterozygous state? 8. In a certain population, one in 16 million (16,000,000) females is affected with factor VilI hemophilia How many males in this same population will be affected with this same condition? 9. Approximately one in 15,000 individuals in...
Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004 Assuming that this population is under Hardy- Weinberg equilibrium, calculate all allele frequencies and genotype frequencies. Enter your numerical answers in the boxes below. Express each answer to four decimal places. Frequency of A1: Frequency of A2: Frequency of homozygous dominant: Frequency of homozygous recessive: Frequency of heterozygous
6
A human trait that is caused by an autosomal dominant mutant allele has a penetrance of 50%. A man who is heterozygous for this mutant allele marries a woman who is homozygous recessive for the normal allele. If they have two children then what is the probability that both children will show the normal phenotype? O 1/4 o 1/2 03/16 0 7/8 09/16
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What is the genotype of a brown-eyed woman who has a blue-eyed child? A)bb -B)Bb С)ВВ D)BBB E) BbBb 8) The ability to roll the edges of the tongue upward in a U-shape is inherited as a dominant allele at a single gene locus, Which of the following genotypes would produce an individual that can roll their tongue? A)TT only B)Tt only C) only D)TT...
07.900 Thi 3. Le 1. You have sampled a population in which you know that the percentage of the homove recessive genotype(a) is 36%. Using that 36%, calculate the following: A. The frequency of the "sa" genotype. B. The frequency of the altele. 80 C. The frequency of the "A"allele. D. The frequencies of the genotypes "A" and "Aa." 3-12ft ocity of the The frequencies of the two possible phenotypes if 'Ais completely dominant over "a. opactisol the derivatives in...
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
If 9% of the population cannot taste PTC (a recessive trait), what is the frequency of the non-taster allele in the population? What is the frequency of the taster allele? What percentage of the population will be homozygous dominant? What percentage of the population will be heterozygous?
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