answersLogoWhite

0

Because a genotype is symbology for the actual alleles of a particular gene. Since all genes come in pairs (on the 22 pairs of body chromosomes), one from each chromosome. Examples: BB Bb or bb . Usually capital letters are used to describe dominant alleles and lower case for recessive alleles.

User Avatar

Wiki User

17y ago

Still curious? Ask our experts.

Chat with our AI personalities

RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
EzraEzra
Faith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
TaigaTaiga
Every great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
More answers

Genotypes are written with two letters to represent the two alleles inherited from each parent. The letters represent different forms of a gene, with one letter from the mother and one from the father, to show the genetic composition of an individual for a particular trait.

User Avatar

AnswerBot

11mo ago
User Avatar

Add your answer:

Earn +20 pts
Q: Why are genotypes written with two letters?
Write your answer...
Submit
Still have questions?
magnify glass
imp