Question

Which of the following statements is false?

The number of chromosomes is different in different organisms.
There are more genes in a cell than there are chromosomes.
A single gene can only influence a single trait.
The karyotypes for a male human and a female human look different.

Answer 1

C
A single gene can influence more than one trait.

Answer 2

The false statement is "A single gene can only influence a single trait".

Step-by-step explanation:

A single gene can control or influence one or more than one trait. The ability of a single gene to control or affect more than one character or trait is called pleiotropy. However, according to one gene-one enzyme hypothesis gene act through enzyme production that each gene is responsible for single enzyme that affects a single step in a metabolic process.