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
marysya [2.9K]
3 years ago
14

Protein structural motifs often have general functions in common. Which motif is known to be involved in protein dimer formation

but not in direct protein-DNA interactions?
Biology
1 answer:
maxonik [38]3 years ago
6 0
Their promoters have different affinities for RNA polymerase holoenzyme.
You might be interested in
Why are chloroplasts more on one side of a cell than the other
vaieri [72.5K]

You would be referring to the <em>plant </em>cell.

Answer:

Chloroplasts may be seen on all six sides of a plant cell, which is a three-dimensional entity with typically moderately rounded corners (not in the centre because a big central vacuole fills a very large part of the volume). Chloroplasts are constantly being rearranged by the cell since they are not set in place. Chloroplasts are typically located close to so-called periclinal cell walls, which are oriented in the same 2D orientation as the leaf surface under low light. Chloroplasts seem to "escape" to the anticlinal walls in bright light. Better light harvesting in low light by exposing every chloroplast to light and photoprotection by mutual shading in strong light are likely the fitness benefits provided by this behavior. In the dark, chloroplasts also gravitate toward the anticlinal walls. Thin leaves of submerged aquatic plants like Elodea can be used as microscope specimens to observe chloroplast motions. One can gauge how much light gets through a leaf in land plants. What I just said concerning the top layer(s) of leaves' "palisade parenchyma cells" is accurate. Most of the chloroplasts are found in these cells. Numerous cells in the spongy parenchyma under the palisade layer lack well marked peri and anticlinal walls.

<h2>How did plant cells incorporate chloroplasts in their DNA?</h2>

Chloroplasts must reproduce in a manner akin to that of some bacterial species, in which the chloroplast DNA is duplicated first, followed by binary fission of the organelle (a kind of protein band that constricts so that two daughter organelles bud off). As a result of some chloroplast DNA actually being integrated into the plant genome (a process known as endosymbiotic gene transfer), it is now controlled in the nucleus of the plant cell itself.

8 0
1 year ago
How do neurons work?
kenny6666 [7]

A neuron (also known as nerve cell) is an electrically excitable cell that takes up, processes and transmits information through electrical and chemical signals. It is one of the basic elements of the nervous system. In order that a human being can react to his environment, neurons transport stimuli.

4 0
3 years ago
Why do mangroove tree survive in the water?
alexandr1967 [171]
<span>Mangroves store water in their leaves. some also grow pencil-like roots that stick up out of the dense, wet ground like snorkels. These breathing tubes are called pneumatophores, allowing the mangroves to cope with flooding/ survive in water

</span>
6 0
3 years ago
List the order of Producers that colonize the land After Lichens
olasank [31]

Answer:

Plant is a common example of a Producer.

Producers are also known as autotrophs.They are organisms which make their own food. They do so by getting energy from chemicals or the sun and with the help of water convert the energy into useable forms such as sugar.

The order of Producers that colonize the land After Lichens include

Annual herbaceous plants

Perennial herbaceous plants and grasses

Shrubs

Shade intolerant trees

Shade tolerant trees.

8 0
3 years ago
Golgi apparatus is to vacuole as packaging is to
amid [387]
Storage.  Vacuoles store water and waste.
4 0
3 years ago
Other questions:
  • Amanda gets protein at lunch by eating a chicken sandwich. How can Amanda’s body use the protein in the chicken to build protein
    10·1 answer
  • How could heavily fertilized lawns contribute to cyanobacterial blooms in lakes and oceans? A. Run-off from the lawns will get i
    12·1 answer
  • What does the Eurasian Boar threaten?
    5·1 answer
  • What is a baby hamster called?
    13·2 answers
  • Explain 3 different ways seeds can be transported from location to another
    10·2 answers
  • The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule
    13·2 answers
  • The nursing student identifies which people as qualifed to administer anesthesia?
    13·1 answer
  • Can someone help me figure this out please?
    13·1 answer
  • In plant cells, the amount of water in the cells creates pressure against the cell walls. If the amount of water in the cells of
    11·1 answer
  • Looking again at the chemical equation for anaerobic respiration in the Introduction of this lab, what is the purpose of anaerob
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!