Molecular genetics questions.

When DNA is being made, the RNA base ____ always pairs with the base ___ in DNA.

1. U….A
2. C….G
3. A….U
4. a and b
5. all of the above

Which of the following is not associated with DNA?

1. deoxyribose
2. thymine
3. uracil
4. phosphates
5. a and b

The number of nucleotide bases “read” together on the tRNA to designate each amino acid is ___ ; this unit called a(n) _____.

1. 2…...dipeptide
2. 3…..triose
3. 3…..anticodon
4. 3…...codon
5. 1…...amino acid

How many nucleotides are needed to code for a protein with 450 amino acids if it excludes equivalent of stop codon on mRNA?

1. At least 1,347
2. at least 1,353
3. at least 450
4. at least 1,356
5. at least 1,350

DNA replication results in

1. 2 completely new DNA molecules
2. 2 DNA molecules that each contains a strand of the original
3. 1 new DNA molecule , 1 old molecule is conserved
4. 1 new molecule of RNA
5. b and c

Which of the statatements below is false?

1. The genetic code is universal
2. One codon specifies more than one amino acid
3. Degenerate codons specify the same amino acids 
4. The generic code is triplet
5. None 

Which mode of information transfer usually does not occur?

1. DNA to DNA
2. DNA to RNA
3. DNA to protein
4. DNA to carbohydrates
5. C and D

The effort to re-discover Mendel findings was done by __ and co-workers.

1. James Watson
2. O.T.Avery
3. Hugo de Vries
4. Francis Crick
5. Meischer

A DNA strand with the sequence AACGTAACG is transcribed. What is the sequence of the corresponding tRNA alignment, if it represents a sense strand?

1. AACGTAACG
2. UUGCAUUGC
3. AACGUAACG
4. TTGCATTGC

The enzymes that phosphorylate proteins are termed

1. kinases
2. phosphorylases
3. dephosphorylases
4. phosphokinases