During transcription, RNA polymerase binds to DNA site

1.	Regulator	2.	Promoter
3.	Enhancer	4.	Receptor.

Degeneration of genetic code is due to
1. First member of codons
2. Second member of codons
3. Third member of codons
4. Entire codons.

What does lac refer to in lac operon
1. Lactase
2. 1,00,000
3. Lac insect
4. Lactose

In genetic code dictionary, codons used to code for all the 20 essential amino acids are
1. 20
2. 60
3. 61
4. 64

In gene mutation, adenine is replaced by guanine. It is
1. Frame-shift mutation
2. Transcription
3. Transition
4. Transversion

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

DNA fingerprinting is related to:

A nutritionally wild-type organism that does not require additional biochemicals is:

On which organism Beadle and Tatum worked to propose one gene-one enzyme hypothesis
1. Drosophila
2. Escherichia coli
3. Neurospora crassa
4. Nostoc

Protein synthesis in an animal cell occurs
1. On cytosolic ribosomes only
2. On ribosomes attached to E.R. and nuclear envelope
3. On ribosomes present in nucleolus as well as cytoplasm
4. On ribosomes present both in cytoplasm as well as mitochondria.