Chromosomes have arms, but not arms like you and me. Which of the following is true of chromosome arms? a The p arm is longer than the q arm. b The p arm is on the left; the q arm is on the right. c The q arm is the top; the p arm is the bottom. d The p arm is shorter than the q arm.
DNA and RNA
Deoxyribonucleic acid (DNA) is usually called the blueprint of life. Deoxyribose is a monosaccharide that has a key function in the synthesis of deoxyribonucleic acid. One less oxygen-containing hydroxyl group occurs in deoxyribose sugar. Nucleic acid, deoxyribonucleic acid, is one of the natural components. Deoxyribonucleic acid is a double-stranded molecule. Watson and Crick postulated the double-stranded model of the helix. A deoxyribonucleic acid is a molecular group that carries and transmits genetic information from parents to offspring. All eukaryotic and prokaryotic cells are involved.
DNA as the Genetic Material
DNA, or deoxyribonucleic acid, is a long polymeric nucleic acid molecule discovered in the late 1930s. It is a polymer; a long chain-like molecule made up of several monomers connected in a sequence. It possesses certain characteristics that qualify it as a genetic component. Certain organisms have different types of nucleic acids as their genetic material - DNA or RNA.
Genetics
The significant branch in science which involves the study of genes, gene variations, and the organism's heredity is known as genetics. It is also used to study the involvement of a gene or set of genes in the health of an individual and how it prevents several diseases in a human being. Thus, genetics also creates an understanding of various medical conditions.
DNA Replication
The mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of its own is defined as DNA replication. The DNA molecules utilize a semiconservative method for replication.
| a |
The p arm is longer than the q arm.
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| b |
The p arm is on the left; the q arm is on the right.
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| c |
The q arm is the top; the p arm is the bottom.
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| d |
The p arm is shorter than the q arm.
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Chromosomes are the thread like structures present in the nucleus of the eukaryotic cell , which is supposed to be the carrier of the genetic information. The chromosome network of the interphase nucleus condenses through coiling just before the cell division and seperate into the slender thread like structures , which have been called the Chromosomes by Waldeyer in 1888. The term is derived from Greek which means chrom: color , Soma : body , on the account of the greater affinity of chromosomes towards biological stains . They are capable of self reproduction and play an important role in the hereditary transmission.
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