Answer: Option D.
Genotype by environment interaction.
Explanation:
Genotype by environment interaction refer to a situation where two different genotypes react differently in an environment. Light skinned humans are at greater risk of skin cancer because they lack melanin which the dark people have and this melanin protect the skin from sun.
All the choices are correct. Differences in the norm of reaction I.e they react different way.
Epistasis is when the effect of a gene suppress the other.
Pleiotrophy is when a gene influence another genes phenotipically. These are all genotype enviromr interaction.
Before this theory can be replaced, the one that must happen is : D. Scientists must test and agree on a new theory
After numerous tests are done and it's proven to be a better theory and can be more generally accepted than the previous one, that the previous theory could be replaced
hope this helps
Interphase isn't part of mitosis because the cell doesn't divide in interphase.
Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids. So the answer would be Prophase l. Hope this helps
Molecular structures of an object directly affect its physical properties (especially intensive features) such as color, density, melting and boiling points, malleability etcetera.
An example is a type of bond between the atoms and molecules in an object that influence its physical properties. Covalent bonds, for instance, render the strength of an object but deny it electric conductivity.
