In an organism the alleles that an organism has for a specific

In an organism the alleles that an organism has for a specific gene are its ______________. How those alleles are expressed are its phenotype.

The ____________ is the position of a gene on the chromosome.

Using the letter G, write out the genotype for an individual who is heterozygous.

Which of the following is not a reason that Mendel’s experiments on genetics were successful?

A-He kept the design simple

B-He kept accurate data for many generations.

C-He had an accurate hypothesis

D-He chose the right organism to work with

5. Albinism results from a recessive allele. Which of the following describes the expected offspring from a normally pigmented male (who had an albino father) and an albino wife?

A) 75% normal; 25% albino

B) 75% albino; 25% normal

C) 50% normal; 50% albino

D) All normal

E) All albino

6. A dimpled chin is an autosomal dominant trait, with round chin being the recessive trait. What is the expected genotypic and phenotypic of the offspring from a husband who is heterotrophic and a homozygous recessive wife?

Make sure to show your work, or no credit.

7. In a plant where yellow color flower is dominant over white and green leaves are dominant over variegated; find the phenotypic results of crossing a plant is who recessive for both flower and leaf color, with a plant that is heterozygous for both traits. If you do not show your work you will get no credit for this question.

8. What are the possible gamete genotypes of an organism that has the genotype HhTt ?

9. Based on this pedigree, which individual was a carrier for hemophilia but did not suffer from the disease?

A) Frederick (generation IV)

B) Alexandra of Denmark (generation III)

C) Victoria, Princess of Saxe-Coburg (generation I)

D) Gonzalo (generation V)

E) Irene (generation IV)

10. True/False? Sex-linked traits affect only sexual characteristics.

11. Human skin color is the result of

A) one pair of genes showing incomplete dominance.

B) codominance.

C) simple dominance.

D) sex-linked recessive inheritance.

E) polygenic inheritance.

12. Hemophilia is a sex-linked recessive gene that causes a blood disorder. What are the chances that the daughter of a normal man and a heterozygous woman will have hemophilia?

A) 0%

B) 25%

C) 50%

D) 75%

E) 100%

13. Sickle-cell anemia is caused by a recessive mutation in the hemoglobin gene. However, heterozygote individuals also show a small percentage of sickled red blood cells. What type of inheritance pattern is this an example of?

A) Polygenic inheritance

B) Sex linked

C) Incomplete dominance

D) Chromosomal nondisjunction

14. A man who carries a harmful sex-linked (on the X chromosome) gene will pass the gene on to

A) all of his daughters.

B) half of his daughters.

C) half of his sons.

D) all of his sons.

E) all of his sons and daughters.