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
Olin [163]
4 years ago
6

A geneticist introduces a transgene into yeast cells and isolates five independent cell lines in which the transgene has integra

ted into random places in the yeast genome. In four of the lines, the transgene is expressed strongly, but in the fifth there is no expression at all. Which is a likely explanation for the lack of transgene expression in the fifth cell line?A) A transgene integrated into a heterochromatic region of the genome. B) A transgene intergrated into a euchromatic region of the genome. C) The transgene was mutated during the process of integration into the host cell genome D) The host cell lacks the enzymes necessary to express the transgene. E) A transgene integrated into a region of the genome characterized by high histone acetylation
Biology
1 answer:
Zina [86]4 years ago
3 0

Answer:

A) A transgene integrated into a heterochromatic region of the genome.

Explanation:

This is most likely the reason why the transgene is not expressed in the fifth cell line. It is likely that the transgene was integrated into a heterochromatic region of the genome. Heterochromatin consists of genetically inactive satellite sequences, and many of these are repressed to various extents. Moreover, because this is a tightly packed form of DNA or condensed DNA, it is inaccesible to polymerases and thus not transcribed.

You might be interested in
Which of the following is true about glassy igneous rocks?
Evgesh-ka [11]
Glassy igneous rocks (i.e. obsidian) are cooled very rapidly.
6 0
3 years ago
Explain how a person could die from drinking too much water. Be sure to use the following terms in your answer: diffusion, osmos
kondor19780726 [428]

Answer:

ik i just need ponbbbbbhints

8 0
3 years ago
When a parent is trying to get child to eat vegetables and say yummy the parents are using what food preference?
Luden [163]
They r trying to infer that “Broccoli” is delicious
7 0
4 years ago
Consider the mammalian heart. why is the muscular wall of the left ventricle thicker than that of the right ventricle? the left
Julli [10]
The left ventricle must contract with more force in order to send blood to the body's extremities

I hope this helps! I'm happy to answer any other questions you might have :)

8 0
3 years ago
Why are tigers orange
Anna [14]

Answer:

C

Explanation:

Most animals can't see orange, and this makes the tiger almost invisible. This is also why hunters wear orange.

7 0
3 years ago
Other questions:
  • Mrs. Lewis set up a lab for her biology students using a culture of the small crustacean Daphnia, obtained from a pond that was
    15·1 answer
  • When chlorophyll absords sunlight,it gives it to which particles​
    8·1 answer
  • Carbon, an important element for life, keeps cycling between the spheres of the Earth. Carbon dioxide in the_____ (atmosphere)(b
    9·2 answers
  • Which process drives Darwin’s theory of evolution?
    14·2 answers
  • Please look at the picture above.
    11·1 answer
  • Is cellular compartmentalization an advantage or a disadvantage?
    15·1 answer
  • What could you do to support or reject this hypothesis
    15·1 answer
  • Which of the following is not a phenotype?
    14·1 answer
  • I'm learning about photosynthesis and cellular respiration and wonder how cellular respiration works for plants.
    13·2 answers
  • Which of the following choices are the products of glycolysis?OOOOcarbon dioxide and wateroxygen and waterglucose2 pyruvate mole
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!