If a character is always transmitted directly from a father to all his sons and from their sons to all their sons, then which chromosome carries the gene for the character?

Q. The genes transmitted directly from a father to his sons only are known as

Q. A gene located on Y-chromosome and therefore, transmitted from father to son is known as

Q. Assertion :Holandric genes are found on Y chromosome. Reason: Inheritance of holandric genes is always from father to son.

Q. X-linked recessive disorders are passed from mothers to their sons and from fathers to their daughters. If a male expresses a X-linked recessive disorder, then which of the following is true for his parents?
I. His mother is a carrier.
II. His father expresses the same disorder.
III. His mother does not express the disorder.

Q. If a trait is passed from man to all of his sons only