BIOL 3001 FINAL EXAM CORRECT
100%
dominant/recessive - ANSWERone phenotype completely masks the other
sex-linkage - ANSWERwill show different ratios between the normal cross and the
reciprocal cross
genetic linkage - ANSWERoccurs between genes that lie so close together on a
chromosome that their alleles are unable to assort independently
produces more parental phenotypes than non-parental phenotypes
recombination - ANSWERrefers to the process of recombining genes to produce
new gene combinations that differ from those of either parent
produces genetic variation in organisms
occurs as a result of separation of genes during meiosis, the random uniting of these
genes during fertilization
complete penetrance - ANSWERAn individual in the pedigree will be affected
(express the phenotype associated with a trait) when the individual carries at least
one dominant allele of a dominant trait, or two recessive alleles of a recessive a trait.
incomplete dominance - ANSWERblending in the heterozygous
co-dominance - ANSWERboth phenotypes are shown in the heterozygous
lethal alleles - ANSWERalleles that cause early death
look for 2:1 ratio
recessive trait - ANSWERthe disease must be recessive if any affected individual
has 2 unaffected parents
autosomal recessive - ANSWERif any affected founding daughter has 2 unaffected
parents the disease must be
x linked recessive - ANSWERwhen an affected non-founding son has 2 unaffected
parents the disease must be...
more males than females affected
dominant trait - ANSWERthe disease must be dominant if every affected non-
founding parent has an affected parent
100%
dominant/recessive - ANSWERone phenotype completely masks the other
sex-linkage - ANSWERwill show different ratios between the normal cross and the
reciprocal cross
genetic linkage - ANSWERoccurs between genes that lie so close together on a
chromosome that their alleles are unable to assort independently
produces more parental phenotypes than non-parental phenotypes
recombination - ANSWERrefers to the process of recombining genes to produce
new gene combinations that differ from those of either parent
produces genetic variation in organisms
occurs as a result of separation of genes during meiosis, the random uniting of these
genes during fertilization
complete penetrance - ANSWERAn individual in the pedigree will be affected
(express the phenotype associated with a trait) when the individual carries at least
one dominant allele of a dominant trait, or two recessive alleles of a recessive a trait.
incomplete dominance - ANSWERblending in the heterozygous
co-dominance - ANSWERboth phenotypes are shown in the heterozygous
lethal alleles - ANSWERalleles that cause early death
look for 2:1 ratio
recessive trait - ANSWERthe disease must be recessive if any affected individual
has 2 unaffected parents
autosomal recessive - ANSWERif any affected founding daughter has 2 unaffected
parents the disease must be
x linked recessive - ANSWERwhen an affected non-founding son has 2 unaffected
parents the disease must be...
more males than females affected
dominant trait - ANSWERthe disease must be dominant if every affected non-
founding parent has an affected parent
