1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oksian1 [2.3K]
3 years ago
5

Consider an experiment in which an Hfr strain of E. coli bacteria with the StrS, his , met alleles in its genome is mixed with a

n F- strain of E. coli with the StrR, his-, and met- alleles in its genome. After the cells have been cultured together for 8 hours, the mixture of cells is plated on minimal media containing Streptomycin. Which genotype do you expect to be most common among the colonies that grow
Biology
1 answer:
Ksju [112]3 years ago
5 0

Answer:

F-: StrR, his+ and met+

Explanation:

the strain Hfr is a high-frequency strain of recombination that includes the F plasmid (fertility factor). Therefore, the whole genome sequence is able to be passed via Hfr to its receiver, but it needs a long duration of physical contact with the recipient because the recipient gets a gene (long time physical contact is seldom attained) and retains the F strain. Also, genomes from the F-cells are not passed backwards to the HF cells. Therefore, only F strain with tolerance to Streptomycin and capable of synthesizing its amino acids on limited media can thrive in this situation. Which is F-: StrR, his+ and met+ recombining.

You might be interested in
Random changes in the dna sequence in a chromosome are called
vladimir1956 [14]
Is they are random changes I believe they should be mutations
4 0
3 years ago
True or false: a habitat can only include one niche. ?
atroni [7]
False, because a niche is how one animal uses its habitat- many animals use many different niches
3 0
3 years ago
HEEEEEEEEEEEELP POINTS!
topjm [15]
The answer to your Q it is doubled rods of condensed chromatin
3 0
3 years ago
What substance must plants produce in order to make lipids?
Mariana [72]
Amino acids are produces
8 0
3 years ago
how are oil and natural gas collected? A. quarries B. strip mining C. wells are drilled D. an open pit
jonny [76]

Answer:

Explanation:

Natural gas is most commonly extracted by drilling vertically from the Earth's surface. .Hydraulic fracturing, horizontal drilling, and acidizing are processes to expand the amount of gas that a well can access, and thus increase its productivity.

6 0
2 years ago
Other questions:
  • Why is it important to balance majority rule with minority rights
    7·1 answer
  • Recall Mendel's pea plants: the allele for purple flowers, P, is dominant to the allele for white flowers, p. A very large numbe
    10·2 answers
  • what kind of energy transformation takes place when plants perform photosynthesis to produce glucose molecules?
    6·1 answer
  • What metal is is usually used for wires in electric circuits
    13·1 answer
  • An animal cell (left) and a plant cell (right) are shown.
    7·2 answers
  • Both passive and active transport are used to move molecules into and out of cells. True or False
    10·1 answer
  • HELP PLZZ!!! I WILL MARK YOU AS THE BRAINLESS ANSWER
    11·2 answers
  • List five organelles that must divide or fragment before the cytoplasm divides.
    13·1 answer
  • Which one of the following statements provides the best evidence that prokaryotic cells are less complex than eukaryotic cells?
    11·1 answer
  • Name a daughter cell type formed by the meiotic division of gamete mother cells of X ?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!