Answer: Transposons (jumping genes).
- A Introns removed during pre-mRNA splicing
- B Transposons (jumping genes)
- C Exons retained in the mature mRNA transcript
- D Promoters that recruit RNA polymerase to a gene
Correct answer: B. Transposons (jumping genes)
Explanation: Transposons (transposable elements/jumping genes) discovered by Barbara McClintock can move from one location to another in the genome.
Punnett square for a monohybrid cross between two heterozygous (Tt) parents, showing the 3:1 phenotypic ratio predicted by Mendel's Law of Segregation.
Concept context
Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.
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