In general, a point mutation alters a single base in the DNA (gene) which can potentially alter the identity of a SINGLE amino acid in the protein sequence.
<span>Also, it might be a good idea to ask biology questions in the Science and Math section. More of us answer there more often than here.</span>
Answer is (a) human adaptability.
Rationale for rejecting b,c,d options:
Humans do not have a high fecundity, they can give birth to 1-3 offspring on an average.
The skin tone variation is an adaptation that is based on the geography. The sunlight intensity affects it. It is a part of the ability of the humans to efficiently adapt to their surroundings.
The body variation in the form of physical features is also the result of the ability of the humans to adapt to their surroundings.
Mendel's law of Independent assortment explains the statement, "when breeding fruit flies, phenotypes for yellow bodies and long bristles are inherited separately."
<h3>What is the law of independent assortment?</h3>
- The alleles of two additional genes are sorted into gametes independently of one another, following the law of independent assortment.
- Receiving one allele for one gene does not affect receiving another allele for a different gene.
- Mendel's experiment consistently showed that the progeny's qualities are always distinct from those of their parents.
- He developed the Law of Independent Assortment based on this.
<h3 /><h3>What are the reasons for Independent assortment?</h3>
- Meiosis involves the independent assortment of cells.
- Chromosomes that have undergone this process are haploid and have been divided in two.
- It is crucial to comprehend the law of segregation to comprehend the law of independent assortment.
- In this, two unique genes are present in various gamete cells.
- However, when the maternal and paternal genes are randomly divided results from the law of independent assortment.
While breeding fruit flies, phenotypes for yellow bodies and long bristles are inherited separately, which is based on Mendel's law, "the law of Independent assortment."
Learn more about the law of Independent assortment here:
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The answer is; Physical weathering does not change the composition of the rock while chemical weathering does.
Physical weathering only cracks and breaks the rocks into smaller pieces. Chemical weathering causes a reaction between the rock minerals and acidic rain or organic acids from plants forming different minerals or dissolving the rock minerals.
