AP BIOLOGY

Detailed explanation-1: -Genes carry the information that determines your traits (say: trates), which are features or characteristics that are passed on to you-or inherited-from your parents. Each cell in the human body contains about 25, 000 to 35, 000 genes.

Detailed explanation-2: -Traits can be determined by genes, environmental factors or by a combination of both. Traits can be qualitative (such as eye color) or quantitative (such as height or blood pressure). A given trait is part of an individual’s overall phenotype.

Detailed explanation-3: -Not to stir up a battle of the sexes, but the X chromosome (females have two of them, while males have one) is five times larger than the Y chromosome, and has 10 times the number of genes. That means it carries more traits-and diseases-than the Y chromosome.

Detailed explanation-4: -The part of a chromosome that is responsible for a person’s characteristics is called a gene. Genes are the structures on the chromosomes that are responsible for heredity. Genes are composed of DNA.

Detailed explanation-5: -Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene.