Science True-False

False.
Explanation:
Species, in biology, classification comprising related organisms that share common characteristics and are capable of interbreeding.

False.Explanation:
A gene is a basic unit of heredity in a living organism. Genes come from our parents. We may inherit our physical traits and the likelihood of getting certain diseases and conditions from a parent.

True.
Explanation:
If a mutation occurs in a germ-line cell (one that will give rise to gametes, i.e., egg or sperm cells), then this mutation can be passed to an organism's offspring. Somatic mutations occur in non-reproductive cells, they are passed to daughtercells during mitosis but not to offspring during sexual reproduction.

True.
Explanation:
In population genetics, gene flow is the transfer of genetic variation from one population to another. In some cases migration may also result in the addition of novel genetic variants to the gene pool of a species or population.

True.
Explanation:
In this system, the sex of an individual is determined by a pair of sex chromosomes. Females typically have two of the same kind of sex chromosome (XX), and are called the homogametic sex. Males typically have two different kinds of sex chromosomes (XY), and are called the heterogametic sex.