Answer:
4
Explanation:
The correct answer would be <u>hydrotropism</u> and <u>thigmotropism</u>.
Hydrotropism is defined as the movement of a plant or its organs to or away from moisture. The deep root growth of plants is a way of seeking or growing towards moisture that is present deep in the soil. Hence, <u>the root is said to exhibit positive hydrotropism.</u>
Thigmotropism, on the other hand, is the growth or movement of plants or their organs to or away from touches. In this case, <u>the tendrils of the plant that wraps around objects they come in contact with are showing positive thigmotropism.</u>
The correct option is, therefore, option 4.
The correct answer is: silent mutation
There are a few types of genetic mutation that can change genetic code. Those mutations can be classified:
1. Substitution-only one base is changed
• Nonsense mutations-when substitution leads to the formation of a stop codon instead of a codon
• Missense mutations-when one nucleotide is substituted and a different codon is formed
• Silent mutations-when a nucleotide is substituted and the same amino acid is produced
2. Insertion- extra base pairs are inserted
3. Deletion- section of DNA is deleted