Answer and Explanation:
The possible genotype and phenotype are as follows
Genotype Phenotype
BbR∧ - Barbed and not resistant to pesticide
BBRR - Barbed and not resistant to pesticide
bbR∧ - Smooth and not resistant to pesticide
bbRR - Smooth and not resistant to pesticide
bb∧∧ - Smooth and resistant to pesticide
Bb∧∧ - Barbed and resistant to pesticide
BB∧∧ - Barbed and resistant to pesticide
This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.
The answer is C. At first I thought it was D but it actually belongs to clubmosses
Answer:
black is the dominant phenotype.
Explanation:
The black gene "overrides" the gene that codes for blue, thus making it dominant.
The rough endoplasmic reticulum (versus the smooth), which is where the ribosomes are and make proteins.