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
iVinArrow [24]
3 years ago
8

Suppose there is a protein "A" which binds to a DNA sequence and increases transcription of the gene CBC23. In the presence of m

olecule "C", protein "A" changes structure and can no longer bind to the DNA sequence, resulting in reduced transcription of CBC23. What terms describe "A" and "C" respectively?
Biology
1 answer:
fenix001 [56]3 years ago
7 0

Answer:

A = Activator

B = Effector

Explanation:

An activator is a protein which typically binds to a short (50–1500 bp) region of DNA which might be located either upstream (mainly) or downstream of a gene so as to cause increased transcription. This particular region of DNA is known as enhancer and activator is also  known as transcription factor. Activator is a trans-acting factor which binds to the cis-acting factor which is enhancer so as to enhance transcriptional expression.

But another protein named as effector may restrict activator from binding to the enhancer leading to a decrease in transcriptional expression by binding to the activator allosterically. Allosteric binding of effector to the activator causes conformational change in activator so it can no longer bind the enhancer.

You might be interested in
What is special about the mitochondria of the kinetoplastid group of euglenozoans?
RSB [31]

Explanation:

<em><u>Members of the kingdom Euglenozoa do have mitochondria, but are a diverse group in terms of structure. All euglenoids have a flagellum, whereas the kinetoplastids have a kinetoplast</u></em>

\huge\bold\red     {Befikra❥☘⍣❦}

5 0
2 years ago
Decomposition of plant and animal matter present in soil is largely due to soil microorganism. True or False
Harman [31]
<span>The question says,'decomposition of plants and animal matter present in the soil is largely due to soil micro organism. The statement is true. The soil microbes function by decomposing the organic matter in the soil to the forms usable to plants. The humus produce by these microbes is largely responsible for soil fertility. </span>
8 0
4 years ago
Match up macromolecules with example.
sweet-ann [11.9K]
I get it! 

a. carbohydrates - glycogen or starch (these are sugars)
b. proteins - hemoglobin or enzyme (these are examples of proteins)
c. lipids - cholesterol or fat
d. nucleic acids - DNA or RNA
3 0
3 years ago
(c) Name all the classes of Chordata which is warm-blooded (endothermic).
ddd [48]

The classes of chordata which are warm-blooded are birds and mammals.

Explanation:

Warm-blooded animals are those which can maintain their body temperature at a constant.  

These classes of chordates balance their internal body temperature with that of the outer environment. When the outer environment is cold, they increase their internal temperature by producing more heat; and when it is hot outside they reduce their internal temperature by cooling themselves.  

The food consumed by a warm-blooded animal fuels to maintain a constant body temperature and hence they require more food.  

Warm blooded animals cool themselves with the help of sweat glands.  

The skin and other parts like fur in birds help to keep the animals warm during winter. Birds also shed their fur in hot season to keep them light. Birds migrate to warm regions during winter.

These animals have high stamina and energy to survive environmental changes. They maintain their temperature through endothermy, homeothermy or tachymetabolism.

Whale living in water is the fish which is also warm blooded because it is a mammal.

4 0
3 years ago
A chemical has been found to harm the same compound in both prokaryotic and eukaryotic cells. Which compounds are those?
Mashcka [7]
I would have to say A. ribosomes are known to break and release their digestive juices into the cell upon cell death. thus killing them
5 0
3 years ago
Other questions:
  • Adult stem cells cannot repair and replace cells in a animal true or false?
    7·1 answer
  • Which statement describes one feature of Rutherford’s model of the atom? The atom is mostly empty space. The atom cannot be divi
    14·2 answers
  • Intestinal virome changes precede autoimmunity in type i diabetes-susceptible children. 2017. proc natl acad sci u s
    7·1 answer
  • What is not true of the effects of hypoventilation? what is not true of the effects of hypoventilation? blood ph decreases hydro
    14·1 answer
  • Which of the following proteins attach desmosomes to one another
    7·1 answer
  • Which scientist disproved the idea of spontaneous generation by formulating and testing the hypothesis that only flies can make
    5·1 answer
  • Which of the following is correct about the flatworm's muscular system ?
    5·2 answers
  • A rock climber climbs up the rock wall how do the bones and muscles in his arms interact to allow him to climb up
    10·1 answer
  • Which term describes an injury that does not break the skin and is characterized by swelling, discoloration, and pain?
    5·1 answer
  • Guys pls help me!!!!!!!!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!