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1. According to the central dogma, which of the following represents the flow of genetic
10. What is the complementary messenger-RNA sequence for the DNA template
paper. .
information in cells?
A. protein to DNA to RNA B.DNA to RNA to protein
C. RNA to DNA to protein D. DNA to protein to RNA
2. Which of the following enzymes is used to join strands of DNA?
A. DNA Ligase B. Primase C. Nucleic Acid D. DNA Polymerase
3. What happens during the start of DNA replication?
The bonds between nitrogen base and deoxyribose sugar break.
B. The leading strands produce the Ozaraki fragments.
The hydrogen bonds between the nucleotides of two strands break.
The phosphodiester bonds between the nucleotides break.
4. Unwinding of the DNA is done by which enzyme?
A Ligase B. Helicase C.Hexonuclease D. DNA Polymerase
5. DNA replication is possible due to:
A. Hydrogen bond. B. Complementary base pairing C.Phosphate backbone D.
Nucleotides
5. Which mode of information transfer usually does not occur?
A. DNA to DNA B DNA to RNA C. DNA to Protein D. All occur in a working
cell
6. If the DNA template reads "ATA", then which of the following would be the
corresponding sequence on the mRNA?
A. UAU B.ATA C. TUT D. UCU
7. One similarity between DNA and messenger RNA molecules is that they both contain:
A The same sugar. B. Genetic code based on base sequence.
C Nitrogenous base known as Uracil. D. Double stranded polymers.
8. The specific site of RNA transcription from DNA is the:
A Mitochondria B. Cytoplasm C. Nucleus D. Chromosome
9. RNA is stable under alkaline conditions.
A. True B. False C. Depends on the condition D. Depends on the DNA sequence
sequence shown below?
C-A-A-G-G-T
A. GTTCCA B. CAAGGU
C.
GUUCCA
D. CAAGGT

1.The central dogma of molecular biology describes the flow of genetic information in cells from DNA to messenger RNA (mRNA) to protein. It states that genes specify the sequence of mRNA molecules, which in turn specify the sequence of proteins.

2. a. dna ligase

3.DNA replication initiates at specific points, called origins, where the DNA double helix is unwound. A short segment of RNA, called a primer, is then synthesized and acts as a starting point for new DNA synthesis. An enzyme called DNA polymerase next begins replicating the DNA by matching bases to the original strand.

4.b. DNA helicases

5.c. DNA to Protein

6.a.UAU

7. a.The same sugar

8.C. Nucleus

9. a. true

10.mRNA is formed as a complementary strand to one of the two strands of the DNA. Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine.

Explanation:

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