Answer:
the allele combination for a trait
Explanation:
The genotype describes which alleles (versions) of a gene an organism has. Diploid organisms, such as humans, have two copies of each gene. Sometimes these alleles are the same and the individual is h0m0zygous for that gene. If they are different, the individual is heterozygous for that gene.
The physical appearance of a trait is the phenotype.
The answer is D. Cold. A cold front is defined as a transition zone where cold air replaces warm air.
Answer:
C. Two non-functional copies of the retinoblastoma gene.
