my dog
Agro/ANSC/Bio/Hort 305
Fall, 2013 Homework #1 (Due back on Sept 11, 2013) Name: Section: Q1. Pick any example of a genetic technology and describe how it has directly impacted your life.
Q2. Explain the relationship between the following pairs of genetic terms:
A. Gene and trait:
B. Gene and chromosome:
C. Allele and gene:
D. DNA sequence and amino acid sequence:
Q3. For each of the following terms in the left column, choose the best matching phrase in the right column.
a. phenotype 1. Having two identical alleles of a given gene
b. alleles 2. The allele expressed in the phenotype of the heterozygote.
c. independent assortment 3. Alternate forms of a gene.
d. gametes 4. Observable characteristic.
e. gene 5. A cross between individuals both homozygous for two genes.
f. segregation 6. Alleles of one gene separate into gametes randomly with respect to alleles of other genes.
g. heterozygote 7. Reproductive cells containing only one copy of each gene.
h. dominant 8. The allele that does not contribute to the phenotype of the heterozygote.
i. F1 9. The cross of an individual of ambiguous genotype with a homozygous recessive individual
j. test cross 10. An individual with two different alleles of the same gene.
k. genotype 11. The heritable entity that determines a characteristic.
l. recessive 12. The alleles an individual has.
m. dihybrid cross 13. The separation of the two alleles of a gene into different gametes.
n. homozygote 14. Offspring of the P generation
Q4. In his work Mendel found that full pea pods are dominant to constricted pods, whereas round seeds are dominant to wrinkled seeds. One of his crosses was between full, round plants and constricted, wrinkled plants. From this cross, he obtained an F1 that was all full and round. In the F2, Mendel
Fall, 2013 Homework #1 (Due back on Sept 11, 2013) Name: Section: Q1. Pick any example of a genetic technology and describe how it has directly impacted your life.
Q2. Explain the relationship between the following pairs of genetic terms:
A. Gene and trait:
B. Gene and chromosome:
C. Allele and gene:
D. DNA sequence and amino acid sequence:
Q3. For each of the following terms in the left column, choose the best matching phrase in the right column.
a. phenotype 1. Having two identical alleles of a given gene
b. alleles 2. The allele expressed in the phenotype of the heterozygote.
c. independent assortment 3. Alternate forms of a gene.
d. gametes 4. Observable characteristic.
e. gene 5. A cross between individuals both homozygous for two genes.
f. segregation 6. Alleles of one gene separate into gametes randomly with respect to alleles of other genes.
g. heterozygote 7. Reproductive cells containing only one copy of each gene.
h. dominant 8. The allele that does not contribute to the phenotype of the heterozygote.
i. F1 9. The cross of an individual of ambiguous genotype with a homozygous recessive individual
j. test cross 10. An individual with two different alleles of the same gene.
k. genotype 11. The heritable entity that determines a characteristic.
l. recessive 12. The alleles an individual has.
m. dihybrid cross 13. The separation of the two alleles of a gene into different gametes.
n. homozygote 14. Offspring of the P generation
Q4. In his work Mendel found that full pea pods are dominant to constricted pods, whereas round seeds are dominant to wrinkled seeds. One of his crosses was between full, round plants and constricted, wrinkled plants. From this cross, he obtained an F1 that was all full and round. In the F2, Mendel