Atest cross with an organism with a homozygous recessive genotype
results in 50% of the offspring exhibiting the recessive trait.
what is the genotype of the test-cross
parent?
i. homozygous recessive
ii. homozygous dominant
iii. heterozygous
a. i only
b. ii only
c. iii only
d. i or iii
e. ii or iii

it is because according to the process , scientific inquiry is a process with many steps because each step occurs to the scientist and if you just skip a step there would be no steps to scientific inquiry.

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.