Secondary succession occurs in which of the following?
A. an area where the ecosystem has been
completely wiped out by volcanic eruption
B. an area where the ecosystem has been badly
damaged
C. an area through which a glacier has retreated,
leaving bare rock

a. 35°c

b. 25°c

c. 10°c

d. 40°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.

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