Plant Kingdom

Q. In plants, what is the term for the observable traits expressed by an organism?

Solution

Phenotype refers to the observable characteristics or traits of an organism.

Correct Answer: B — Phenotype

Q. What is the basic unit of heredity in plants?

Solution

A gene is the basic unit of heredity, responsible for specific traits in plants.

Correct Answer: B — Gene

Q. What is the primary function of DNA in plant cells?

Solution

DNA stores the genetic information necessary for the growth, development, and reproduction of plants.

Correct Answer: C — Genetic information storage

Q. What is the role of ribosomal RNA (rRNA) in plant cells?

Solution

rRNA is a key component of ribosomes, which are essential for protein synthesis.

Correct Answer: C — Forming the core of ribosomes

Q. What type of mutation involves the substitution of one nucleotide for another?

Solution

A point mutation is a change in a single nucleotide, which can affect protein function.

Correct Answer: C — Point mutation

Q. Which of the following is a method used to amplify DNA?

Solution

Polymerase chain reaction (PCR) is a widely used method to amplify specific DNA sequences.

Correct Answer: B — Polymerase chain reaction (PCR)

Q. Which of the following processes involves the conversion of DNA to RNA?

Solution

Transcription is the process by which DNA is copied into RNA.

Correct Answer: B — Transcription

Q. Which type of mutation can result in a premature stop codon?

Solution

A nonsense mutation introduces a premature stop codon, leading to truncated proteins.

Correct Answer: C — Nonsense mutation

Q. Which type of RNA is responsible for carrying amino acids to the ribosome during protein synthesis?

Solution

tRNA (transfer RNA) carries amino acids to the ribosome, where proteins are synthesized.

Correct Answer: B — tRNA

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