Genetics majors only please Multiple choice 1. Genomics us the study of A) inher

Question

Genetics majors only please
Multiple choice
1. Genomics us the study of A) inherited variation B) similarities between species C)alleles of a gene in an individual D) two of the above E) none
2. Which one is true ? A) all genes on a chromosome are genetically linked to a centromere B)crossing over is the only way genes can recombine C)crossing over does not occur in oocytes D)homologous chromosomes segregate in meiosis 1 E) mitosis is reductive

Genetics majors only please
Multiple choice
1. Genomics us the study of A) inherited variation B) similarities between species C)alleles of a gene in an individual D) two of the above E) none
2. Which one is true ? A) all genes on a chromosome are genetically linked to a centromere B)crossing over is the only way genes can recombine C)crossing over does not occur in oocytes D)homologous chromosomes segregate in meiosis 1 E) mitosis is reductive


Multiple choice
1. Genomics us the study of A) inherited variation B) similarities between species C)alleles of a gene in an individual D) two of the above E) none
2. Which one is true ? A) all genes on a chromosome are genetically linked to a centromere B)crossing over is the only way genes can recombine C)crossing over does not occur in oocytes D)homologous chromosomes segregate in meiosis 1 E) mitosis is reductive

Explanation / Answer

1.Genomics is the study of inherited variation and alleles of genes in an individual.

Thus option D i.e. two o above is correct.

Genomics is a branch of molecular biology concerned with the structure, function, evolution, and mapping of genomes. Genomics aims at the collective characterization and quantification of genes, which direct the production of proteins with the assistance of enzymes and messenger molecules. Proteins in turn make up body structures like organs and tissues as well as control chemical reactions and carry signals between cells. If a cell's DNA is mutated, an abnormal protein may be produced, which can disrupt the body's usual processes and in some cases lead to diseases such as cancer. In contrast to genetics, which refers to the study of genes and their roles in inheritance, genomics is the study of genes, their functions, and related techniques such as recombinent DNA and DNA sequencing.

2.During meiosis, a single round of DNA replication is followed by two consecutive rounds of nuclear divisions called meiosis I and meiosis II. In meiosis I, homologous chromosomes segregate, while sister chromatids remain together. Hence Option D is true

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