LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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all of the exons in the DNA
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all of the DNA in a human organized and readable
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all of the introns in the DNA
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Detailed explanation-1: -A genome is all of the genetic material in an organism. It is made of DNA (or RNA in some viruses) and includes genes and other elements that control the activity of those genes. Does everybody have the same genome? The human genome is mostly the same in all people.
Detailed explanation-2: -3.2 billion That’s how many base pairs-or sets of genetic “letters"-make up the human genome. In order to list all those letters, a person would have to type 60 words per minute, 8 hours a day, for about 50 years! However, humans are by no means the species with the most base pairs.
Detailed explanation-3: -The human genome is divided into 46 DNA molecules, or chromosomes, consisting of pairs of chromosomes 1 to 22 (autosomes), numbered sequentially according to their size, and of two sex chromosomes that determine whether an individual is male or female (Fig. 1).
Detailed explanation-4: -Humans typically have 23 pairs of chromosomes, or 46 chromosomes in total. Chromosomes are made up of long strands of DNA, which contain all the body’s genes.