AP BIOLOGY

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HEREDITY

SEX LINKAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This DNA is made up of about 3 billion base pairs and divided into thousands of genes on 23 pairs of chromosomes, all the DNA in the human species is found here
A
pedigree
B
x-linked gene
C
human genome
D
nondisjunction
Explanation: 

Detailed explanation-1: -Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people.

Detailed explanation-2: -The human genome In fact, we know the sequence of the entire human genome-all 3 billion letters. That’s enough information to fill roughly 1, 000 200-page books! Contained within the 3 billion letters of the human genome are about 21, 000 genes. Most of our known genes code for proteins, but some code for RNA molecules.

Detailed explanation-3: -One copy of the human genome consists of approximately 3 billion base pairs of DNA, which are distributed across 23 chromosomes. Human chromosomes range in size from about 50 million to 300 million base pairs.

Detailed explanation-4: -99.6. The DNA of any two people on Earth is 99.6 percent identical.

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