For each of the terms in the left column, choose thebest matching phrase in the right column.a. phenotype 1. having two identical alleles of a given geneb. alleles 2. the allele expressed in the phenotype ofthe heterozygotec. independent 3. alternate forms of a gene assortmentd. gametes 4. observable characteristice. gene 5. a cross between individuals bothheterozygous for two genesf. segregation 6. alleles of one gene separate into gametesrandomly with respect to alleles of othergenesg. heterozygote 7. reproductive cells containing only onecopy of each geneh. dominant 8. the allele that does not contribute to thephenotype of the heterozygotei. F1 9. the cross of an individual of ambiguousgenotype with a homozygous recessiveindividualj. testcross 10. an individual with two different allelesof a genek. genotype 11. the heritable entity that determines acharacteristicl. recessive 12. the alleles an individual hasm. dihybrid cross 13. the separation of the two alleles of agene into different gametesn. homozygote 14. offspring of the P generation
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
For each of the terms in the left column, choose the
best matching phrase in the right column.
a.
b. alleles 2. the allele expressed in the phenotype of
the heterozygote
c. independent 3. alternate forms of a gene
assortment
d. gametes 4. observable characteristic
e. gene 5. a cross between individuals both
heterozygous 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. testcross 10. an individual with two different alleles
of a 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
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