Answer:
A.) Aa
Explanation:
A heterozygous gene is known as having two different alleles of a particular gene or genes. The correct answer is option A because both letters are different, versus the other two options where both are capital or lowercase.
Electric cars and the renewable energy that create the electricity to charge
them protects environmental quality.
Renewable energy arise from renewable sources such as sunlight, wind etc
and they are always replenished from time to time. This form of energy
doesn't emit compounds such as greenhouse gases thus helping to protect
environmental quality.
Non renewable energy is mostly gotten from fossil fuels which emits carbon
and other compounds . These compounds pollute and reduces
environmental quality.
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Answer:
By the same token, any random change in a gene's DNA is likely to result in a protein that does not function normally or may not function at all. Such mutations are likely to be harmful. Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes
Answer:
some plants have thorns some animals have spikes
Explanation:
