GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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gene
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allele
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phenotype
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genotype
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Detailed explanation-1: -DNA is a set of instructions that specifies the traits of an organism. Variations in the DNA lead to the inheritance of different traits.
Detailed explanation-2: -Traits can be determined by genes, environmental factors or by a combination of both. Traits can be qualitative (such as eye color) or quantitative (such as height or blood pressure). A given trait is part of an individual’s overall phenotype.
Detailed explanation-3: -Genes come in different varieties, called alleles.
Detailed explanation-4: -Genes are segments of DNA that contain instructions for building the molecules that make the body work. Most of the molecules are proteins. Parents pass their genes to their offspring.
Detailed explanation-5: -Your chromosomes contain the blueprint for your body – your genes. Almost every cell in the human body contains a copy of this blueprint, mostly stored inside a special sac within the cell called the nucleus. Chromosomes are long strands of a chemical substance called deoxyribonucleic acid (DNA).