A basic experiment involves a minimum of two participant groups. The two participants are the experimental group and the control group. An experimental group receives the variable being tested, and one variable is tested at a time. The experimental group is compared to a control group, which does not receive the test variable.
Answer:
tt
Explanation:
Firstly, look at the oldest female shape. It would be a circle since that is female and which circle, would be the oldest one. In line one. Since the circle is white, the gene has not been carried so it must be reccessive.
tt because it is the only allele pair that would give you the gene without obtaining that trait, meaning it is reccessive.
So it would make sense that tt is the choice.
Answer:
The feeling of the heart skipping a beat is common
Answer: its 4 i just did it 4 minutes ago
Explanation: i just did it