AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following normally results from meiosis in a human cell that contains 46 chromosomes?
A
an egg cell with 46 chromosomes
B
a liver cell with 23 chromosomes
C
a sperm cell with 23 chromosomes
D
a blood cell with 46 chromosomes
Explanation: 

Detailed explanation-1: -In meiosis, a cell containing the diploid number of chromosomes is converted into four cells, each having the haploid number of chromosomes. In human cells undergoing meiosis, for instance, a cell containing 46 chromosomes yields four cells, each with 23 chromosomes.

Detailed explanation-2: -To put that another way, meiosis in humans is a division process that takes us from a diploid cell-one with two sets of chromosomes-to haploid cells-ones with a single set of chromosomes. In humans, the haploid cells made in meiosis are sperm and eggs.

Detailed explanation-3: -In humans, somatic cells have 46 chromosomes in total, while gametes have 23.

Detailed explanation-4: -Meiosis is a process that starts with a given number of chromosomes in the nucleus of a cell, and ends with gamete cells that each contain half the number of chromosomes that were in the original cell. Most human cells, for example, have 46 chromosomes, whereas sperm and egg cells have only 23 chromosomes.

Detailed explanation-5: -When the cell divides, the copies are pulled apart, and each new cell gets one identical copy of each chromosome. This type of cell division is called mitosis, and it produces cells with a total of 46 chromosomes.

There is 1 question to complete.