Answer:
The stigma becomes moist and sticky at maturation allowing for the pollen to be captured. The top of the pistil being enlarged offers a greater surface area for pollen to land on as well.
Explanation:
A geneticist would know if an organism is homozygous or heterozygous for a certain trait based on if the organism had two of the same alleles or 2 different alleles for that same trait.
Homozygous: (X,X) or (Y,Y)
Heterozygous: (X,Y)
TTTT is the correct answer
Answer:
The correct answer is B.It was necessary that each of the two phage components, DNA and protein, be identifiable upon recovery at the end of the experiment
Explanation:
Hershey and chase in his experiment lebelled the T₂ bacteriophage with radioactive sulfur and radioactive phosphorus separately. Then they infect E.coli with T₂phage and separated phage from bacteria by centrifugation.
Because DNA contains phosphorus not protein, cells infected with phage containing radioactive phosphorous showed radioactivity bacause DNA enters the cell not protein confirming DNA is the genetic material and radioactive sulfur was found in supernatant.
Yellow River Civilization