AIIMS Botany Molecular Basis of Inheritance Class 12 Questions

Assertion : Complementary base pairing occurs in DNA. Reason : This is because adenine is combined with cytosine with a double bond and guanine is combined with thymin with a triple bond.

Chimeric DNA is

Gene library or DNA library has collection of

Identify a, b, and c

Select the correct option regarding genetic code of Glycine

Genes on same chromosome can be

Who discovered DNA fingerprinting

Which is similar term to Hybrid vigour?

Which of the following switch off lac operon

m-RNA is formed by

Percentage of (G + C) is

Arrange them on the basis of increasing size:

Which of the following is a sex linked character

The genetic code of proline are :

The coding strand of DNA is : 5′AATTCAAATTAGG₃′ What is the sequence of mRNA?

The genetic codes of arginine are:

Correct sequence for Alanine code:

Identify a, b and c

DNA polymerase links nucleotide by forming which type of bond:

Which mutation causes change in allele?

Select the wrong statement:

Which is not possible by mutation:

Match the Column-I with II

Choose the correct statement.

Assertion : In eukaryotes, both intron and exon are transcribed to form hnRNA Reason : Splicing is required in prokaryotes

Assertion: In eukaryotes, transcription occurs in nucleus Reason: In bacteria, transcription and translation occurs in cytoplasm.

Blood group of the father is A and blood group of mother is B. Then predict the blood group of the progeny -

Mark the incorrect statement for inbreeding

Assertion: Phenylketonuria, Haemophilia and sickle cell anemia are genetic disorders

Reason: In phenylketonuria the person has a non-functional enzyme for the conversion of phenylalanine to tyrosine.

Assertion : The banding pattern of the chromosome can be studied by dyes as quinacrine, mustard dye of Giemsa.

Reason : These patterns are used for finger printing to study even genetic defects.

Chargaff’s rule states that in an organism

Select the wrong pair

Codons of alanine

Question : Codons of Arginine are

Which of the following can synthesize all types of RNA?

Match column-I to the column-II and select the option having correct matching –

The ratio of complementary gene in F2 generation

Which of the following is true for given diagram

In Mirabilis jalapa, red flowered plant is crossed with white flowered plant. What will the phenotypic ratio in $\text{F}_2$ generation.

Turner syndrome is due to

In the Diagram given figure of Lac operon

$\begin{array}{|c|c|c|c|c|c|c|} \hline \text{P} & \text{i} & \text{P} & \text{o} & \text{z} & \text{y} & \text{a} \\ \hline \end{array}$

Haemophilia is

Which of the following chains of haemoglobin is affected in thalassaemia

Which of the following statement is wrong about transcription in bacteria

Which of the following is codons codes for proline.

Which statement is wrong about satellite DNA

Which of the following is a correct pair?

Which among the following is true for protein synthesis in bacteria?

Which of the following is incorrect about DNA finger printing?

Assertion: Genes show mutation, they are rare, stable and inheritable Reason: One allele is modified into other allele by mutation.