AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

BIOLOGICAL PSYCHOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The biochemical units of heredity that make up the chromosomes are called
A
genes.
B
genomes.
C
epigenetics.
D
heredity.
Explanation: 

Detailed explanation-1: -A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.

Detailed explanation-2: -Genes are the functional units of heritable material that are found within all living cells. Every member of a species possesses a set of genes specific to that species. It is this set of genes that provides the constancy of the species. Every individual has two copies of each gene, i.e., one inherited from each parent.

Detailed explanation-3: -Thus, biochemical genetics is a branch of genetics that deals with the chemical structure of the genes and with the mechanisms by which the genes control and regulate the structure and synthesis of proteins. It studies the relationship of genes and their control over the function of enzymes in biochemical pathways.

Detailed explanation-4: -Heredity is the transfer of characteristics from parents to offspring through reproduction, while genetics is the study of transmission of these characterisitcs from parents to their offsprings. A gene is the basic structural and functional unit of heredity. They are made up of DNA and are parts of chromosomes.

Detailed explanation-5: -Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person’s genes. Genes are contained in chromosomes, which are in the cell nucleus.

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