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
Nookie1986 [14]
3 years ago
5

The pattern of transcription for a pair of identical twins (Tweedledee and Tweedledum) is very similar at the age of 10. However

by the time they are 50, transcription of the leptin gene is much higher in Tweedledee than in Tweedledum. This could be due to what change in Tweedledum? Group of answer choices
Biology
1 answer:
aivan3 [116]3 years ago
7 0

Answer:

Explanation:

My best bet is DNA methylation at the site of Tweedledum's leptin gene or Histone Acetylation at the site of Tweedledee's gene.

B/c DNA methylation is a process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription. So this is probably repressing Tweedledum's leptin gene trancription which is not happening in Tweedledee.

Additionally, Histone Acetylation at site of Tweedledee's gene increases her trancription b/c Histone acetylation causes DNA to be more accessible and leads to more transcription factors being able to reach the DNA. Thus, acetylation of histones is known to increase the expression of genes through transcription activation.

You might be interested in
What is the correct order of biological organization from broadest to most specific
quester [9]

Answer:

This is just the order of taxonomic groupings.

Domain (Broadest)

Kingdom

Phylum

Class

Order

Family

Genus

Species (Most specific)

8 0
4 years ago
Read 2 more answers
Mrs. Smith has blood type A. Her father has blood type A, and her mother has blood type B. If Mr. Smith has blood type AB, what
Elodia [21]

according to the punnet , A is correct I think

3 0
4 years ago
GABA is the primary neurotransmitter that underlies synaptic inhibition. GABA mostly
WARRIOR [948]

Answer:

b. brings the postsynaptic cell to the chloride equilibrium potential  

Explanation:

Gamma-aminobutyric acid (GABA) is one of the most important neurotransmitters, chemicals that brain cells use to communicate with each other. In fact, it is the most frequent inhibitory neurotransmitter. Inhibiting neurotransmitters decrease the chances that a nerve impulse will be triggered.

The main function of GABA as an inhibitory neurotransmitter is to slow down brain activity. It is also involved in vision, sleep, muscle tone and motor control.

It is widely distributed both inside and outside the central nervous system. It is found in the intestines, stomach, bladder, lungs, liver, skin, spleen, muscles, kidneys, pancreas and reproductive organs.

In vertebrates, GABA leads the postsynaptic cell to the chloride equilibrium potential. Through it, chloride ions flow out of the cell to achieve equilibrium.

7 0
3 years ago
a. Normal body temperature is 98.6°F. A child is not feeling well, and there is only a Celsius thermometer available. The child'
victus00 [196]

Answer:

Just convert, 37 degrees Celcius into Fahrenheit is: 98.6

8 0
3 years ago
The presence of cholesterol in the plasma membranes of some animals
Sever21 [200]

Answer: A) enables the membrane to stay fluid more easily when the cell temperature drops.

8 0
3 years ago
Other questions:
  • Newton’s 2nd law describes the relationship between Force & Mass. It can be written that Force= mass multiplied by accelerat
    9·1 answer
  • This is best described by which of these?
    15·1 answer
  • What type of organisms does photosynthesis and cellular respiration occur in?
    5·2 answers
  • The scale bar has a width of 20 micrometers, or 20 μm. (There are 1,000 micrometers in a millimeter.) Using the scale bar, about
    7·1 answer
  • Interstitial cells produce?
    8·1 answer
  • The description below is about a community in a poor country in need of certain basic
    5·2 answers
  • Which reason provides the best explanation of why a bar graph was selected to show the data in the table? Bar graphs are used to
    16·2 answers
  • What are the three general guidelines of effective persuasion?
    6·1 answer
  • Make a food web using 8-10 organisms
    13·1 answer
  • Write a short essay on how will you protect natural resources.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!