A gene discovery technique that looks at regions of the genome where individuals have the same alleles much more often than expected by chance, because their ancestors were blood relatives, is called:

Explanation:

Homozygosity mapping  

Homozygosity mapping is also known as autozygosity mapping.

It is a common method for mapping recessive traits in consanguineous(related families) families.

And it also serve as an extremely powerful tool in the clinical genetics and many other fields.

It is based on a mutation happening in a founder person on one chromosome.

actually the answer is c

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.