Life on Earth depends on chromosomes as building blocks for genetic information. Chromosomes determine many things about you, including your hair color.Answer and Explanation: Chromosomes are arranged in pairs, and one of each set of the two comes from each parent. Both parents contribute one ...
What triggers meiosis in gonadal cells? Why do genetic mutations pass to offspring in gametes? Explain why DNA replication and cell division are necessary for both sexual and asexual reproduction. Why are chromosomes arranged in pairs? When human somatic cells undergo mitosis are diploid cells ...
4.Why does the professor mention shoelaces? A. To point out that chromosomes are arranged in pairs B. To describe the coiled shape of a chromosome C. To illustrate how chromosomes are protected from damage D. To explain how chromosomes are joined before dividing 相关知识点: ...
OK. You know that all of a person's genetic information is contained on very long pieces of DNA called chromosomes—12 of them in a human cell, that's 23 pairs of these chromosomes—of various lengths and sizes. Now, um, if you'll look at this rough drawing of one of them—one ...
Learn about the structure and composition of chromosomes. Explore how DNA and chromatin are related to chromosomes. Discover where in the cell chromatin is found. Related to this Question If you stack a bunch of thylakoids together, what is it called?
With the exception of eggs and sperm, every cell in the human body contains 46 chromosomes, the ribbon-like strands of DNA along which genes are arranged. Of these, 44 exist as matched pairs in men and women.But the two remaining sex chromosomes are different - women have a matched pair...
The nucleus contains DNA separated into a number of chromosomes, with the total number varying between species (humans have 46). During the process of mitosis, the nuclear membrane dissolved, chromosomes that have already been duplicated in pairs are pulled apart, and the nucleus and cell divide...
Matthew Cobb, a zoologist at the University of Manchester in England, said all those “ifs” may be insurmountable. There is no guarantee that the modified chromosomes can be introduced to an elephant cell, or if that an embryo will take hold in an elephant womb. ...
A. To point out that chromosomes are arranged in pairs B. To describe the coiled shape of a chromosome C. To illustrate how chromosomes are protected from damage D. To explain how chromosomes are joined before dividing 你的答案: 正确答案:C 题目解析: 登录 后才能查看题目解析,还没有账号...
Why are mutations the source of genetic variation? Why can't males be heterozygous for X-linked genes? Are all Mendelian traits autosomal? Why are chromosomes arranged in pairs? What is an autosomal DNA match? How does the Chromosomal Theory of Inheritance help advance our understanding of genet...