AP BIOLOGY

CELL DIVISION

MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cells with half the chromosomes are called ____
A
diploid (2n)
B
haploid (n)
Explanation: 

Detailed explanation-1: -Haploid refers to the presence of a single set of chromosomes in an organism’s cells. Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only the egg and sperm cells are haploid.

Detailed explanation-2: -Gametes contain half the chromosomes contained in normal diploid cells of the body, which are also known as somatic cells. Haploid gametes are produced during meiosis, which is a type of cell division that reduces the number of chromosomes in a parent diploid cell by half.

Detailed explanation-3: -Most human cells are diploid, and only the gametes (i.e., the sperm and egg cells) are haploid. Haploid cells contain half the number of chromosomes as diploid cells. A human diploid cell contains a total of 46 chromosomes (2n = 46), so a haploid cell will contain 23 chromosomes (n = 23).

Detailed explanation-4: -The term haploidy refers to the state of having half of the set of chromosomes. Haploid cells (e.g. gametes) are given a symbol n to indicate that they have only half of the chromosomal set of a somatic cell, i.e. any of the cells in the body of a multicellular organism but excluding the germ cells and the sex cells.

Detailed explanation-5: -Haploid cells contain only one set of Chromosomes (n). Diploid, as the name indicates, contains two sets of chromosomes (2n).

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