Question at position 33 How many chromosomes in total (2n) do humans have?AnswerHow many chromosomes in total (2n) do humans have?[input]

Question

BlackTom AI · Accepted Answer

The question asks about the total number of chromosomes in humans in the diploid state (2n). 
First, note that human somatic (body) cells are typically diploid, containing two sets of chromosomes, one inherited from each parent. 
The standard diploid number in humans is 46 chromosomes. This corresponds to 23 pairs of homologous chromosomes. 
Among these, 22 pairs are autosomes, which are the non-sex chromosomes, and the remaining pair consists of the sex chromosomes, which determine biological sex (XX in most females and XY in most males). 
Therefore, the total chromosome count in diploid human cells is 46 (2n = 46), while the haploid number in gametes (sperm and egg) is 23 (n = 23). 
Common sources of confusion include thinking there are 23 chromosomes total or miscounting the sex chromosomes, but the established count for somatic cells is 46 in most individuals.

Question at position 33 How many chromosomes in total (2n) do humans have?AnswerHow many chromosomes in total (2n) do humans have?[input]

查看解析

登录即可查看完整答案

类似问题

These are passed down from parents during reproduction and are composed of individual strands of the DNA which contribute to the unique make up of you.

Question at position 8 How many types of chromosomes do humans have? Enter the number.AnswerHow many types of chromosomes do humans have? Enter the number.[input]

Question at position 23 How many pairs of autosomes are in a human gamete?AnswerHow many pairs of autosomes are in a human gamete?[input]

Organisms that are diploid contain

Through the study of unusually shaped chromosomes in corn , Barbara McClintock provided strong evidence that genes are located on chromosomes.

Through the study of unusually shaped chromosomes in [ Select ] corn finches fruit flies pea plants , [ Select ] Charles Darwin Gregor Mendel Thomas Hunt Morgan Barbara McClintock provided strong evidence that genes are located on chromosomes.

Individuals have 23 _____ in every cell of the body.

A human has .… pairs of chromosomes

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单