Question

QUESTION 1 a. Steroid hormones: allow weight-lifters to replicate DNA between bench presses OL W. bind to RNA and prevent it from being translated I act as inducers' for their respective receptors affect levels of transcription in bacteria in the presence and absence of trp QUESTION 2 A mutation that changed the third position of a codon would most likely lead to a: 1. missense mutation CII. loss of function . silent mutation av IV. conditional lethal mutant m V. nonsense mutation Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Answer 1

1. Answer: III - Act as "inducers" for their respective receptors.

Explanation: Steroid hormones bind to Androgen Receptor (AR) present in the cytoplasm which then moves to nucleus and alters gene expression.

2. Answer: III- Silent mutation.

EXPLANATION: Third position of the codon is known as "Wobble position". Alterations in this position alters the codon which codes for the same amino acid, this is known as silent mutation.

• This mutation has no effect on protein function.
• Silent mutation is somewhat similar to synonymous mutation.