Answer:
The correct answers are A and B.
Explanation:
Pleiotropy is defined as "when a single gene affects two or more phenotypic characteristic of an organism.". Phenotypic refers to the traits that can be physically observed or measured in an organism, for example height, hair color etc. So the examples of pleiotropy in the given options are in A and B which describe situations where one gene affects two or more phenotypic traits.
I hope this answer helps.
Answer: 21 percent
Explanation:
According to NASA, the gases in Earth's atmosphere include: Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent.
I believe the answer is B, primary active transport. Root hair cells in plant use active transport to absorb mineral ions such as nitrates from the soil. The concentrations of minerals in the soil are lower in the soil than in within the root hair cell, therefore the transport will be against the concentration gradient which does not favor diffusion, therefore the pant has to use active transport.
Answer: Dominance of Gene for Bright Yellow Coloration.
Explanation: Gene carries the genetic makeup of a particular organism. It house all the information of all living organisms.
According to the phenomenon expressed by Gregor Mendel (law of Inheritance), genes are divided into two; dominant and recessive. The gene responsible for bright yellow color is more dominant in ascending generation of the frog which translates that gene responsible for green color is recessive.
