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Bio 30 DNA quiz Questions and Verified Answers
DNA
Ans: Deoxyribonucleic Acid
Watson and Crick
Ans: The first model of DNA was made by?
A deoxyribose sugar unit, A phosphate unit, and a nitrogen base
Ans: The DNA molecule is a "Double Helix", made up of nucleotide's. The
nucleotide's is composed of?
Sugar-phosphate backbone
Ans: The deoxyribose sugar and phosphate unit form the outside of the
molecule, called the?
The "rungs" of a ladder
Ans: The nitrogen bases are the inside of the molecule
4 Nitrogen bases in DNA
Ans: Adenine (A), Guanine (G) are called purines (double ringed structures).
Thymine (T), and Cytosine (C) are called pyrimidines (single ringed
structures)
Complementary base pairs
Ans: Refers to the hydrogen bonded, nitrogenous base pairs of adenosine
and thymine, and of cytosine and guanine in the DNA double helix, or the
base pairs of adenosine and uracil and cytosine and guanine in hybrid
molecules that link complementary strands of RNA and DNA.
Chargaff's Rule
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Ans: This person found that the nucleotides are not present in equal
amounts. Instead, the nucleotides are present in varying, but characteristic
proportions. This person found that the amount of adenine in any sample of
DNA is approximately equal to the amount of thymine and the amount of
cytosine is always approximately equal to the amount of guanine. The
relationship is known as?
Franklin
Ans: This person was able to conclude that DNA has a helical structure
with two regular repeating patterns. One recurring at intervals of 0.34 ad
the other recurring at intervals of 3.4. Based on seeing how DNA reacts with
water she concluded that the nitrogenous bases were located on the inside
of the helical structure, and the sugar-phosphate backbone was located on
the outside, Facing toward the watery nucleus of the cell. This person's
observations were important to understanding the structure of the nucleus.
3 things that make up a nucleotide
Ans: *Deoxyribose sugar unit
*Phosphate unit
*Nitrogen base
Purines
Ans: (Double ringed structures)
*Adenine
*Guanine
Pyrimidines
Ans: (Single ringed structures)
*Thymine
*Cytosine
Human Genome
Ans: (Sum of all DNA carried in each cell) is made up of 3 billion base pairs
and is composed of 20000 - 25000 genes
Genes
Bio 30 DNA quiz Questions and Verified Answers
DNA
Ans: Deoxyribonucleic Acid
Watson and Crick
Ans: The first model of DNA was made by?
A deoxyribose sugar unit, A phosphate unit, and a nitrogen base
Ans: The DNA molecule is a "Double Helix", made up of nucleotide's. The
nucleotide's is composed of?
Sugar-phosphate backbone
Ans: The deoxyribose sugar and phosphate unit form the outside of the
molecule, called the?
The "rungs" of a ladder
Ans: The nitrogen bases are the inside of the molecule
4 Nitrogen bases in DNA
Ans: Adenine (A), Guanine (G) are called purines (double ringed structures).
Thymine (T), and Cytosine (C) are called pyrimidines (single ringed
structures)
Complementary base pairs
Ans: Refers to the hydrogen bonded, nitrogenous base pairs of adenosine
and thymine, and of cytosine and guanine in the DNA double helix, or the
base pairs of adenosine and uracil and cytosine and guanine in hybrid
molecules that link complementary strands of RNA and DNA.
Chargaff's Rule
, Page | 2
Ans: This person found that the nucleotides are not present in equal
amounts. Instead, the nucleotides are present in varying, but characteristic
proportions. This person found that the amount of adenine in any sample of
DNA is approximately equal to the amount of thymine and the amount of
cytosine is always approximately equal to the amount of guanine. The
relationship is known as?
Franklin
Ans: This person was able to conclude that DNA has a helical structure
with two regular repeating patterns. One recurring at intervals of 0.34 ad
the other recurring at intervals of 3.4. Based on seeing how DNA reacts with
water she concluded that the nitrogenous bases were located on the inside
of the helical structure, and the sugar-phosphate backbone was located on
the outside, Facing toward the watery nucleus of the cell. This person's
observations were important to understanding the structure of the nucleus.
3 things that make up a nucleotide
Ans: *Deoxyribose sugar unit
*Phosphate unit
*Nitrogen base
Purines
Ans: (Double ringed structures)
*Adenine
*Guanine
Pyrimidines
Ans: (Single ringed structures)
*Thymine
*Cytosine
Human Genome
Ans: (Sum of all DNA carried in each cell) is made up of 3 billion base pairs
and is composed of 20000 - 25000 genes
Genes
