How many chromosomes are present in a normal human body cell?
Answer and explanation
Correct answer: Forty-six
A normal human body cell is diploid, meaning it contains two sets of chromosomes, one set inherited from each parent. Each set has 23 chromosomes, so the total is 23 + 23 = 46 chromosomes, arranged in 23 pairs. Therefore option A is correct. Twenty-three is the usual number in a gamete, forty-four excludes the sex chromosomes, and ninety-two represents chromosome duplication before cell division rather than the normal total.
Frequently asked questions
What is the correct answer to this question?
Forty-six
Why is this the correct answer?
A normal human body cell is diploid, meaning it contains two sets of chromosomes, one set inherited from each parent. Each set has 23 chromosomes, so the total is 23 + 23 = 46 chromosomes, arranged in 23 pairs. Therefore option A is correct. Twenty-three is the usual number in a gamete, forty-four excludes the sex chromosomes, and ninety-two represents chromosome duplication before cell division rather than the normal total.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
