MCQ
What are the DNA sequences that code for protein known as?
- AIntrons
- BExons
- CControl regions
- DIntervening sequences
Explanation:
DNA initially transcribed to messenger RNA, consists of coding sequences which are called as exons which codes for proteins and non-coding sequences which are called as introns.

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$I.$ People should get vaccination to avoid infection
$II.$ Vaccination is available against polio, cholera, typhoid, tuberculosis and many othe disease
$III.$ Eradication of vectors are necessary in diseases like malaria and filariasis
$IV. $ Dengue and chikengunya, both are spread by Culex mosquitoes
Which of the statements given above are correct?
| List $I$ | List $II$ |
|
$A$. Two or more alternative forms of a gene |
$I$. Backcross |
| $B$. Cross of $F_1$ progeny with homozygous recessive parents | $II$. ploidy |
| $C$. Cross of $F_1$ progeny with any of the parents | $III$. Allele |
| $D$. Number of chromosome sets in plant | $IV$. Test cross |
Choose the correct answer from the options given below: