<u>D.) Crossing over</u> is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis.
Answer:
4. The A allele is dominant to the a allele.
Explanation:
In genetics, the dominant allele which is expressed when present in single or two copies is always written with an upper case letter. The corresponding allele whose expression is prevented in the presence of the dominant allele is written in the "lower case letter". This is called recessive allele. In the given genotype, one copy of "A" and one copy of "a" is present. This means that the allele written with upper case letter "A" is dominant over the allele "a". Nothing can be said about the genetic trait regulated by these two alleles of a gene.
Answer: A total variation of species in a given ecosystem.- Diversity is the answer
Explanation: Something that is able to be passed from a parent to a child- Answer Heredity
The human body attempts to cool down during exercise by producing sweat, while a dog's body attempts to cool down by panting
Answer:
D
Explanation:
The other options are illogical and D is the only one relating to plants.
