subject
Biology, 05.11.2019 09:31 estefaniapenalo

In a series of experiments, avery treated heat-killed nonvirulent s bacteria with enzymes that degraded the proteins, dna, and rna of the s bacteria, then mixed this with nonvirulent r bacteria. s cells grew in all cases except the samples with degraded dna. what did this demonstrate?

a. protein, dna, and rna from the s bacteria are all necessary for bacterial transformation to occur.

b. dna from the s bacteria is necessary for bacterial transformation to occur.

c. protein from the s bacteria is necessary for bacterial transformation to occur.

d. rna from of the s bacteria is necessary for bacterial transformation to occur.

ansver
Answers: 3

Another question on Biology

question
Biology, 21.06.2019 16:00
Match the digestive enzymes to the macro molecules they to digest. down fats into glycerol and fatty acids down carbohydrates into simple sugars down nucleic acids into nitrogenous bases and simple sugars down proteins into amino acids
Answers: 1
question
Biology, 21.06.2019 19:40
Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.
Answers: 1
question
Biology, 22.06.2019 02:40
Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 
Answers: 1
question
Biology, 22.06.2019 08:50
What processes take place before the mature mrna exits the nucleus?
Answers: 1
You know the right answer?
In a series of experiments, avery treated heat-killed nonvirulent s bacteria with enzymes that degra...
Questions
question
Mathematics, 24.06.2019 18:00