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1. Cystic fibrosis is a recessive trait. What would the genotype of a carrier be? Make sure to show your code.

2. Huntington’s disease is a dominant trait. Cross a heterozygous woman with a normal man. What are the chances that they produce a child with Huntington’s disease?

3. What are the possible genotypes for a person with type B blood?

4. One type of hemophilia is a sex-linked recessive condition. Cross a man with hemophilia with a normal woman. What is the chance that they produce a daughter with hemophilia?

5. What are the possible gametes for a plant with the genotype AaBb?

_____1. Who is the “Father of genetics?”

(a) Darwin (b) Woese (c) Mendel (d) Punnett (e) Bateson

_____2. Which of the following molecules stores the genetic information within a cell?

(a) DNA (b) RNA (c) protein (d) enzymes (e) glucose

_____3. A cell that contains two of the same alleles for the same gene is termed:

(a) heterozygous (b) homozygous (c) haploid (d) recessive (e) dominant

_____4. Different versions of genes are called:

(a) proteins (b) enzymes (c) phenotypes (d) alleles (e) haploid

_____5. Dominant alleles are written with:

(a) uppercase letters (b) boxes (c) lowercase letters (d) circles (e) dashes

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6 Nov 2019
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Related questions

1.In humans, PKU is an inherited metabolic disease, which if untreated leads to death at about the age of six. It is inherited as a recessive trait. What is the probability that two heterozygous parents will have:

a)a PKU child?

b)A heterozygous child?

c)A homozygous non-PKU child?

Explain your answer.

2.Unattached earlobes are inherited as a dominant trait; attached earlobes a recessive trait. Suppose a homozygous man with unattached earlobes marries a homozygous woman has attached earlobes:

a)What type of earlobes will their children have?

b)If these children marry someone with the same genotype as themselves, will all of their children have attached lobes?

Explain your answer.

Please show work! thanks

6. Brown hair (A) is dominant over blond hair (a), and browneyes (B) are dominant over blueeyes (b).

6a. Using a single dihybrid Punnett Square show a

ll the possible genotypes of the offspring from a

father with the genotype AaBb and a mother with the genotypeAaBB.

6b. What is the expected phenotypic ratio of the F1offspring?

7. ANSWER THE FOLLOWING QUESTIONS USING THE RULES OFPROBABILITY

7a. In the cross AaBb x AaBb what proportion of the F1 areexpected to have the genotype AAbb?

7b. In the cross AaBb x Aabb what proportion of the F1 areexpected to have the dominant phenotype for BOTH traits?

7c. In the cross AaBbCc x AabbCc what proportion of the F1 areexpected to have the genotype aa?

7d. In the cross AaBbCc x AabbCc what proportion of the F1 areexpected to have the genotype AabbCC?

8. A black and white mouse mate and have 8 healthy grey mice.What would be the expected

phenotypic ratio of the offspring resulting from two greyparents?

9. Bob has blood type A. Frank has blood type AB. Mary has bloodtype B. Mary's child

(Sabrina) has blood type O.

9a. If Mary and Frank have children would be the possible bloodtypes of their children?

9b. Which male (Bob or Frank) could possibly be the father ofSabrina?

10. Hemophilia is a recessive sex-linked human blood diseasethat leads to the failure of blood to clot

normally. What proportion of the sons are expected to havehemophilia if the mother is a carrier

and the father has hemophilia? What proportion of the daughterare expected to have

hemophilia?

1. A person is described as a carrier for a particular genetic disease. What does this tell you about their genotype?

2. For any given gene, the principle of independent segregation predicts that each gamete produced as a result of meiosis will contain ____________________

3. A pair of alleles is said to be heterozygous when:


4. In a diploid species, cells can have up to ___ alleles of a particular gene.

5. In a cross between a homozygous dominant parent and a homozygous recessive parent, the number of phenotypic classes observed in the offspring is ______

6. For a person of genotype Xx, the genotype of their gametes may be ______________

7. In a "test cross", an individual of unknown genotype is crossed with a ___ individual to determine the unknown genotype.

8. An albino woman has a child with a phenotypically normal man with no family history of albinism (which is a rare recessive disorder). What percentage of their children are likely to be albino?

9. An individual with the dominant phenotype, but an unknown genotype, is test-crossed, and all of the offspring exhibit the dominant phenotype. The genotype of the unknown individual is ______________

10. If two heterozygous individuals for a recessive disease (carriers) have a child, what is the chance that their child will develop the disease?

11. In a monohybrid cross between two true-breeding parents that both exhibit the dominant phenotype, ___ percent of the offspring will exhibit the recessive phenotype.

12. In a particular type of tomato plant, red fruit is dominant over yellow fruit, and dwarf height is a recessive trait. If two heterozygous plants were crossed, what proportion of the offspring would show the dominant phenotype?

13. In a cross between a BbRr individual and a BBRR one, what do the following represent: BR, Br, bR, br?

14. In humans, the gene that determines whether an embryo develops as a male or a female is carried on _____________

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