7C

Question 1

Homozygous

Answer 1

Having identical alleles for the same gene on homologous chromosomes

Question 2

heterozygous

Answer 2

Having different alleles for the same gene on homologous chromosomes

Question 3

Dominant or recessive

Answer 3

In a heterozygote, which allele is expressed as the phenotype

Question 4

Dominant allele

Answer 4

the variant of a gene that masks a recessive alle on a homologus chromosome

Question 5

Recessive allele

Answer 5

the variant
of a gene that is masked by
a dominant allele on
a homologous chromosome

Question 6

Complete dominance

Answer 6

a pattern
of dominance where only the
dominant allele from the genotype
of a heterozygous individual is
expressed in the phenotype of
that organism

Question 7

Carrier

Answer 7

an organism that has
inherited a copy of a recessive
allele for a genetic trait but does
not display the trait due to it being
masked by the presence of a
dominant allele

Question 8

Genotype

Answer 8

the genetic composition
of an organism at one particular
gene locus, as represented using
letter symbols

Question 9

Codominance

Answer 9

a pattern of
dominance where both alleles
from the genotype of a
heterozygous individual are
dominant and expressed in the
phenotype of that organism

Question 10

Incomplete dominance

Answer 10

a pattern of dominance where
neither allele from the genotype
of a heterozygous individual is
dominant and both are expressed
in an intermediate phenotype

Question 11

Sex linked genes

Answer 11

Genes located on a sex chromosome (x or y)

Question 12

X-linked traits

Answer 12

Trait controlled by gene on x chromosome

Question 13

Y-linked traits

Answer 13

Trait controlled by gene on y chromosome