What is the relationship between chromosomes DNA and genes quizlet?

May 22, 2020 Off By idswater

What is the relationship between chromosomes DNA and genes quizlet?

What is the relationship between DNA, genes, and chromosomes? genes make up DNA and DNA makes up chromosomes.

Which describes the cells at the end of meiosis 1 when nondisjunction occurs during meiosis 2?

One cell with extra homologous chromosomes and one cell missing a homologous chromosome. Which describes the cells at the end of meiosis I when nondisjunction occurs in meiosis II? The homologous pairs are in separate cells. The cells are haploid.

Which of the following might result in a human zygote with 47 chromosomes?

47,XYY syndrome is caused by the presence of an extra copy of the Y chromosome in each of a male’s cells. As a result of the extra Y chromosome, each cell has a total of 47 chromosomes instead of the usual 46.

What is relationship between DNA and chromosomes?

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person’s genes. Genes are contained in chromosomes, which are in the cell nucleus.

What best describes the relationship between genes DNA and chromosomes?

Which best describes the relationship between DNA, genes, and chromosomes? Genes are segments of DNA which form tight coils called chromosomes.

What are the 2 phases of meiosis?

Meiosis is then split into two phases: meiosis I and meiosis II. In each of these phases, there is a prophase, a metaphase, and anaphase and a telophase.

What describes cells at the end of meiosis?

By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell. Each daughter cell is haploid, because it has half the number of chromosomes as the original parent cell.

What is meant by a karyotype?

Karyotyping is a test to examine chromosomes in a sample of cells. This test can help identify genetic problems as the cause of a disorder or disease.

What process would produce a human zygote with 45 chromosomes?

A diploid plant (sporophyte) produces, by meiosis, a spore that gives rise to a multicellular, haploid pollen grain (gametophyte). Which of the following might result in a human zygote with 45 chromosome? An error in either egg or sperm meiotic anaphase.

What is the main function of chromosomes?

Chromosome Function Chromosomes carry the basic genetic material DNA which is responsible to provide hereditary characteristics and genetic information to the various cells. The cellular functions are important for the growth and survival of living organisms.

Who first identified DNA?

Friedrich Miescher
Rather, DNA was first identified in the late 1860s by Swiss chemist Friedrich Miescher.