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]
3 years ago
6

Which of the following may cause asthma?

Biology
2 answers:
nikitadnepr [17]3 years ago
8 0
The answer is

D. Tobacco smoke

100% Verified!

Hope This Helps!:)
olga_2 [115]3 years ago
4 0
tabacco smoke ahahah
You might be interested in
A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
iren [92.7K]

Answer:

Increase in transcription

Explanation:

Transcription is the process of forming RNA from DNA. It can be controlled by many factors like a repressor. Repressor can bind to the operator region of the promoter and hinder the movement of RNA Polymerase enzyme, halting the process.

Here, it is given that the repressor needs to first bind to an effector molecule X. Once it binds to X, it is activated and then it can bind to operator of gene A to inhibit its transcription. If the X binding domain on repressor is mutated it wont be able to bind to X. Thus it wont get activated and wont be able to attach to operator region to inhibit transcription. Hence, transcription process will keep going on uncontrolled.

5 0
3 years ago
One of the primary functions of the digestive system is ?
Lostsunrise [7]
It helps in digestion of food
7 0
3 years ago
In a flower, the allele for RED color is DOMINANT (R). White color is Recessive (r). A cross between two (2) red flowers is show
Dima020 [189]
If I’m not wrong I’m sure it’s C.
4 0
3 years ago
where do you think more chemical weathering occur: desert or the tropics? Why? Explain your reasoning.
Mashutka [201]
<span>Tropics
A lot of rain falls there, so the possibility of acid rain and smog which can be carried by warm humid air can also form. </span>
4 0
4 years ago
How many electrons would fluorine need to gain in order to have a stable outer energy level
ratelena [41]
One. Chlorine in its normal state has seven valence electrons.
3 0
4 years ago
Read 2 more answers
Other questions:
  • The sides of the DNA molecule, the rails of the ladder, are composed of what
    14·1 answer
  • PLZ HELP!!! I'm timed. I need answer as soon as possible. Will mark the brainliest if correct and ad a thanks with a rate of 5 t
    6·2 answers
  • Why can oxygen consumption be used to measure metabolic rate?
    7·1 answer
  • Tissue that carries messages throughout our bodies
    14·1 answer
  • Algae are at the first trophic level. Flagfish are in the second trophic level. When a Flagfish eats algae, what percent of ener
    14·1 answer
  • g Determine which of the statements about p53 are true. p53 mutations most often occur in residues not involved in DNA binding.
    10·1 answer
  • Austin builds three pinewood derby cars. Car A weighs 5 ounces, Car B weighs 6 ounce, and Car C weighs 7 ounces. He predicts tha
    12·1 answer
  • In a sample of bacterial DNA, 14% of the nitrogenous bases are thymine. About what percentages are the other nitrogenous bases?
    12·1 answer
  • The texture of igneous rock that is composed of large mineral grains
    15·1 answer
  • Which evidence supports viruses being classified as living things?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!