Answer:
A. Heritable
C. Affected by the MC1R gene
D. Polygenic trait
Has evolved due to evolutionary processes such as natural selection.
Explanation:
Human skin color is a polygenic trait as it is regulated by more than one gene. Each allele of these genes has an additive effect on the overall skin color of an individual. Therefore, the trait is a continuous trait, not a discrete one. The genes for human skin color are transmitted from parents to progeny which in turn makes it a heritable trait.
The gene MC1R codes for melanocortin 1 receptor and thereby, regulate the skin color of humans since melanocyte-stimulating hormone binds to the receptor to trigger the synthesis of melanin from melanocytes. Evolution of various skin color in human beings is regulated by natural selection which in turn favors the skin tone best suited under the prevailing climatic conditions of a particular human population
"The ability of an organism to react to an environmental input with a change in form, state, movement, or rate of activity" is a definition of Phenotypic Plasticity.
<u>Explanation:</u>
The tendency of one genotype when opened to different conditions, to create more than single phenotype is called as "Phenotypic plasticity".It's the secret to studying human behaviour.
It's the key to human conduct study by laying the foundation to take into consideration the concept that the similar genome and the similar neural architecture will lead to human cultural diversity. For plants whose sessile existence needs them to survive with environmental conditions, this capacity is especially important.
Prokaryotic cells do not have membrane bound organelles. Eukaryotic cells do have membrane bound organelles. The membrane controls movement in and out of the cell. ... The cytoplasm fills the space between the nucleus and the cell membrane.
Answer: The dead plants form the organic part of the soil. This is because when plants die off they become dirt and mulch which is good for the plants. This is why people make a big deal out of compost. It is because it is healthy and organic for plants.
