CELL DIVISION
MEIOSIS AND GENETIC VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The nucleic acid responsible for coding for an organism’s traits
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DNA that is packed up tightly (individually or in copies) > or ><
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One version of a specific gene
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The physical traits that can be observed
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Detailed explanation-1: -Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder-a shape known as a double helix.
Detailed explanation-2: -DNA is referred to as the genetic code, which carries information that controls a variety of traits in an individual. DNA encodes information that is used to make proteins, or functional molecules that regulate the physical traits of an individual. DNA is first translated, or copied, into a molecule of messenger RNA.
Detailed explanation-3: -The molecule inside cells that contains the genetic information responsible for the development and function of an organism.
Detailed explanation-4: -DNA is important in terms of heredity. It packs in all the genetic information and passes it on to the next generation. The basis for this lies in the fact that DNA makes genes and genes make chromosomes. Humans have 23 pairs of chromosomes – a total of 46 chromosomes.
Detailed explanation-5: -The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.