Which of the Following Statements Is/are CORRECT

question 9

Multiple Choice

Which of the following statements is/are CORRECT?
1) A nickel-cadmium battery is an example of a secondary or rechargeable battery,often used in rechargeable cordless appliances.
2) Hydrogen-oxygen fuel cells use the heat of combustion of hydrogen to recharge lead storage batteries.
3) LeClanché cells are the most efficient rechargeable batteries,but they are rarely used due their high cost of production.

• A) 1 only
• B) 2 only
• C) 3 only
• D) 1 and 3
• E) 1,2,and 3

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Definitions:

Recessive

A type of gene that generally does not manifest in the presence of a dominant gene; it requires two copies (one from each parent) for the trait to be expressed.

Homozygous

Having two identical alleles for a particular gene or genes, contributing to specific traits or conditions.

Recessive Inheritance

A genetic phenomenon where a trait is expressed only when two copies of a recessive allele are present, one from each parent.

Genetic Mutation

A change in the DNA sequence within a gene or chromosome of an organism that can lead to differences in physical traits or health.