In bacterial DNA replication, synthesis starting from the site of origin of replication
1. Involves RNA primers
2. Requires telomerase
3. Proceeds unidirectionally
4. Moves bidirectionally
On which organism Beadle and Tatum worked to propose one gene-one enzyme hypothesis
1. Drosophila
2. Escherichia coli
3. Neurospora crassa
4. Nostoc
During transcription, holoenzyme RNA polymerase binds to DNA sequence and DNA assumes a saddle like
structure at that point. The sequence is called
1. AAAT box
2. TATA box
3. GGTT box
4. CAAT box.
Okazaki fragments during DNA replication
1. Polymerise in 3’ → 5’ direction and form replication fork
2. Prove semiconservative DNA replication
3. Polymerise in 5’ → 3’ direction and explain 3’ → 5’ DNA replication
4. Cause transcription
A sequential expression of a set of human genes occurs when a steroid molecule binds to
1. mRNA
2. DNA sequence
3. tRNA
4. Ribosome
What is not for genetic code
1. It is unambiguous
2. A codon in mRNA is read in a non-contiguous fashion
3. It is nearly universal
4. It is degenerate
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Removal of RNA polymerase III from nucleoplasm will affect the synthesis of:
1. t-RNA
2. hn-RNA
3. m-RNA
4. r-RNA
Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and the one blank component "X" in it.
Category Component
1. Cholesterol Guanin
2. Amino acid NH2
3. Nucleotide Adenine
4. Nucleoside Uracil
DNA- dependent RNA polymerase catalyzes transcription on the strand of the DNA which is called the
1. Antistrand
2. Template strand
3. Coding strand
4. Alpha strand
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DNA fragments are:
1. Positively charged
2. Negatively charged
3. Neutral
4. Either positively or negatively charged depending on their size