1. Unlike DNA, RNA contains deoxyribose a double strand phosphates uracil Nuclei
ID: 256916 • Letter: 1
Question
1. Unlike DNA, RNA contains
deoxyribose
a double strand
phosphates
uracil
Nucleic acid structure
2. In transcription, uracil will bond with:
thymine
cytosine
adenine
guanine
Transcription
3. The first team of scientist to document the structure of DNA was:
Franklin and Wilkins
Watson and Crick
Pauling and Chargoff
None of the above
DNA structure
4. Organelles that synthesize protein are:
lysosomes
ribosomes
endoplasmic reticulum
golgi bodies
5. Most of the time in a cell's life, it's DNA is in the form of:
Chromatin
Chromatids
Replicated chromosomes
Spindle fibers
6. Uracil is a nitrogen base that pairs with adenine. Using this information, one could conclude that uracil is a:
Purine
Pyrimidine
Neither a purine or pyrimidine
Not enough information
7. a nucleotide does not consist of a:
polymerase
5-carbon sugar
phosphate group
nitrogen base
8. The genetic code in DNA of an individual depends on the sequence (order) of:
nucleotides
purines only
phosphates
sugars
9. Before a cell divides, it must duplicate its DNA in a process known as:
translation
transformation
transcription
replication
10. The basic unit (building block) of a protein is a (an):
carbohydrate
amino acid
lipid
hydrogen bond
11. Unlike DNA, RNA contains:
deoxyribose
a double strand
phosphates
uracil
12. The structure of DNA was first documented in:
1945
1953
1956
1962
13. In DNA replication, the new molecules produced are:
of unequal length
both assembled in the same direction
built with purines as the backbone
assembled in opposite directions
DNA replication
14. The "backbone" of DNA is composed of:
ribose and phosphates
deoxyribose and phosphates
ribose and uracil
deoxyribose and thymine
DNA structure
15. RNA differs from DNA in which of the following ways?
RNA is single-stranded
RNA contains ribose
RNA does not contain thymine
All of the above
DNA structure
16. Which of the following is NOT required for the transcription process itself?
RNA polymerase
DNA
uracil-containing nucleotides
ribosomes
Explanation / Answer
Answer:
1). Uracil
DNA contains thymine whereas RNA contains uracil and the remaining nitrogen bases are present in both nucleic acids.
2). Adenine
A=T or A=U
3). Franklin and Wilkins
In the early 1950s two scientists, Rosalind Franklin and Maurice Wilkins, studied DNA using x-rays. Franklin produced an x-ray photograph that allowed two other researchers.
4). Ribsomes
5). Chromatin
Chromatin refers to the material of the chromosomes.
6). Pyrimidine
Explanation: Purines are adenine and guanine whereas pyrimidines are thymine, cytosine and uracil.
7). Polymerase
Nucleotide = Nitrogen base + phosphate + ribose sugar
8). Nucleotides
Explanation: Three successive nucleotides together is called a codon.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.