Why does controlling transcription affect prokaryotic gene expression?
Answer:
However, a lot of gene regulation occurs at the level of transcription. Bacteria have specific regulatory molecules that control whether a particular gene will be transcribed into mRNA. Often, these molecules act by binding to DNA near the gene and helping or blocking the transcription enzyme, RNA polymerase.
Explanation:
Plz mark brainliest thanks
Controlling transcription effect prokaryotic gene expression as when the resulting protein is no longer needed, transcription stops.
What is prokaryotic gene expression?Transcription is the primary control point for prokaryotic gene expression. At the levels of epigenetics, transcription, post-transcription, translation, and post-translation, eukaryotic gene expression is regulated.
Due to the lack of a clearly defined nucleus, prokaryotic gene expression takes place within the cytoplasm of a cell; as a result, the DN is freely located within the cytoplasm. Eukaryotic genes are expressed in the cytoplasm and nucleus, respectively.
These molecules frequently work by attaching to DNA close to the gene and assisting or inhibiting the RNA polymerase transcription enzyme.
Therefore, specific regulatory molecules in bacteria determine whether a given gene is translated into mRNA.
To learn more about prokaryotic gene expression, refer to the link:
https://brainly.com/question/29733286
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Help please!! On science please and thank you! I will give you brainly!
The answer is A, bc the moon is revolving around the earth, causing it to apper in different phahes
10.05
8. The TP53 gene is a tumor suppressor gene that encodes for p53 proteins. This protein plays an active role in
identifying DNA damage in the G1 checkpoint and determining if the damage can be fixed. If the damage can
be fixed, the p53 protein activates other genes for the repair. If the damage cannot be fixed, the p53 protein
prevents cell division and signals for apoptosis. What is most likely to happen to a cell with a mutated TP53
gene?
A. The cell will stop dividing.
B. The cell will signal for repair.
C. The cell will become a cancer cell.
D. The cell will induce programmed cell death.
Answer:
the answer is C
Explanation:
i just took the test on usatestprep
What are examples of tumor suppressor genes, in which mutations correlate with cancer?
A. BBBC 1 and BBBC 2
B. BARC 1 and BARC 2
C. No cells are correlated with cancer
D. BRCA 1 and BRCA 2
How do I make sand.
If the DNA reads TACGTACCT the complimentary mRNA would
be?
Answer:
TAC-GTA-CCT
AUG-CAU-GGA <-- mRNA strand
this is an argument that makes an opposing point to another argument. it exspreses the view of a person who degrees with your position.
Answer:
The correct answer is - counterargument.
Explanation:
A counterargument is an argument that is made by a person against or the opposing point to another argument. Counterargument shows the point of a particular person who does not agree with your point or position on any particular thing or subject.
The counterargument is an argument that is always against the original statement or tries to refute the original statement.
Thus, the react answer is - counterargument.
What does the system of classifying things based first into broad categories, then into progressively more specific categories, describe? phonics taxonomy phylogeny statistics
Answer:
Taxonomy
Explanation:
I just took it
Will be marked brainiest answer❌
Identify the solution a conservation scientist might use to address each problem shown.
excessive buming of fossil fuels
water-based soil erosion
low soil quality
deforestation
limit the clearing
of
trees for farmland
introduce contour
plowing
fertilize with
organic matter
support the government
in developing clean
energy
Compare how oil and natural gas deposits are formed vs. coal and peat deposits.
Answer:
Fossil fuels were formed from the fossillized remains of dead plants and animals that once lived millions of years ago. Oil and natural gas are the products of the deep burial and decomposition of dead plants and animals. Coal comes mainly from dead plants which have been buried and compacted beneath sediments.
Explanation:
Renewable resources include soil, fresh water, wild animals, and
A petroleum
B minerals
C coal
D timber
Answer: D timber
Explanation:
Answer:
timber
Explanation:
In dragons, a gene on chromosome 1 codes for wing color and a gene on chromosome 2 codes for body color. Draw out the stages of meiosis for these two chromosomes from a dragon that is heterozygous for both traits. Make sure that, within your drawing, you define your alleles. Also, in your drawing include all the possible allele combinations of the gametes produced.
Answer:
Possible gametes produced - (XY) (xY) (Xy) (xy)
Explanation:
For Wing color -
Dominant allele = X
Recessive allele = x
For Body color -
Dominant allele = Y
Recessive allele = y
Parent genotype - XxYy
Possible gametes produced - (XY) (xY) (Xy) (xy)
The figure is as follows :
Question 1 (1 point)
Which molecule is NOT found in DNA?
Adenine
Nitrogenous bases
Amino acid
Phosphaten
Deoxyribose
Answer:
Molecule not found in DNA is an amino acid.
Explanation:
DNA is a nucleic acid responsible for containing the genetic information of living beings. The basic structure of DNA consists of:
A sugar, deoxyribose. Nucleotides, including adenine, guanine, cytosine and thymine. Phosphate groups.The information contained in DNA allows the synthesis of proteins necessary for the structure and function of living beings. Amino acids are part of proteins, but it is a molecule that is not found in DNA.
Answer:
Amino acid
Explanation:
Hope this helps
the _____method is a forecasting method that looks at the conditions that lead to particular weather events
answer
What do matter and energy have in common?
Answer:
Explanation:
Energy and matter characterize both physical and biological systems. These systems are defined both by the types of energy and matter they contain and by how that matter and energy move through and between systems. In natural systems, both energy and matter are conserved within a system.
In the following map of the world, in which zones would be most likely to find Seagrams meadows ?
Answer:
between Asia and Australia
Answer:
I believe it is North not entirely sure though and I'm sorry if I was incorrect!
Explanation:
How would an increasing shark population most likely affect this ecosystem?
A. The algae population would decrease.
B. The limpet population would decrease.
C. The seagull population would decrease
D. The octopus population would decrease .
Answer: The answer is D. The octopus population would decrease because I took the test pls give me the brainliest and here is proof
Explanation:
What is the difference between a stimulus and a response?
Answer:
The difference between a stimulus and a response is that a change in the environment is the stimulus; the reaction of the organism to it is the response.
Answer:
║∦║Hello Friend║∦║
Your answer should be: A change in the environment is the stimulus; the reaction of the organism to it is the response.
Examples of stimuli and their responses: You are hungry so you eat some food. A rabbit gets scared so it runs away. You are cold so you put on a jacket.
Explanation:
Hope this helped!
(brainliest appreciated)
Have a wonderful day!!!Can the epidermis bleed?
Answer: Layers of the Epidermis. The epidermis is the outermost layer of our skin. It is the layer we see with our eyes. It contains no blood supply of its own—which is why you can shave your skin and not cause any bleeding despite losing many cells in the process.
The method used to classify living organisms into groups is called:
Group of answer choices
taxonomy
binomial nomenclature
evolution
Darwinism
Answer:
i dont know if im right or not but i think its evolution sorry if im wrong
Answer:
Taxonomy
Explanation:
Cell, DNA, chromosome, gene from smallest to biggest PLSLSLSLSL
Explanation:
From smallest to biggest
Gene, DNA, Chromosome, Cell
PLS HELP ASAP!
a
b
c
d
Answer:
d
Explanation:
As climate refers to The yearly changes and Weather refers to day to day or week to week changes!
if a force does.not make an object move in the direction of the force ,then
Answer: no work occurs
Explanation:
How does a mask protect us?
Answer:
Masks are a simple barrier to help prevent your respiratory droplets from reaching others. Studies show that masks reduce the spray of droplets when worn over the nose and mouth.
Explanation:
FOR 30 POINTS!!
What tools are used for measurement for each of the following-
Pulse
Respiratory Rate
Blood Pressure
Height
Weight
BMI
Lung/ Breath sounds
Oxygen Saturation
Body Temperature
Answer:
1. pulse oximeter
2. spirometer
3. sphygmomanometer
4. stadiometer
5. scale
6. scale + tape measure
7. spirometer
8. pulse oximeter
9. thermometer
Explanation:
Describe what happens in the 5 stages of cell replication.
Mitosis is a process of cell division, whereby a single cell divides into two genetically identical daughter cells. The five stage of mitosis are interphase, prophase, metaphase, anaphase and telophase.
1. Interphase:
The DNA in the cell is copied in preparation for cell division, this results in two identical full sets of chromosomes?.
Outside of the nucleus? are two centrosomes, each containing a pair of centrioles, these structures are critical for the process of cell division.
During interphase, microtubules extend from these centrosomes.
2. Prophase:
The chromosomes condense into X-shaped structures that can be easily seen under a microscope.
Each chromosome is composed of two sister chromatids, containing identical genetic information.
The chromosomes pair up so that both copies of chromosome 1 are together, both copies of chromosome 2 are together, and so on.
At the end of prophase the membrane around the nucleus in the cell dissolves away releasing the chromosomes.
The mitotic spindle, consisting of the microtubules and other proteins, extends across the cell between the centrioles as they move to opposite poles of the cell.
3. Metaphase:
The chromosomes line up neatly end-to-end along the centre (equator) of the cell.
The centrioles are now at opposite poles of the cell with the mitotic spindle fibres extending from them.
The mitotic spindle fibres attach to each of the sister chromatids.
4. Anaphase:
The sister chromatids are then pulled apart by the mitotic spindle which pulls one chromatid to one pole and the other chromatid to the opposite pole.
5. Telophase:
At each pole of the cell a full set of chromosomes gather together.
A membrane forms around each set of chromosomes to create two new nuclei.
The single cell then pinches in the middle to form two separate daughter cells each containing a full set of chromosomes within a nucleus. This process is known as cytokinesis.
I know this is long, but hope it helps!
(True or false) The unit that changes in during evolution is the organism, however the genes remain the same.
Which of the following statements about fossil evidence from plants is true (select all that apply): Question 2 options: Sporophytes were branched before the evolution of vascular tissues. In early land plants the gametophytes were branched and complex like the sporophytes. The earliest known fossil beds, the Rhynie Chert, dates to 360 mya. Since fossilized remains are often rock-like, it is only possible to observe large characteristics, not cellular ones.
Answer:
Sporophytes were branched before the evolution of vascular tissues
In early land plants the gametophytes were branched and complex like the sporophytes
Explanation:
The fossil record shows that early land plants appeared in the Ordovician Period, approximately 470 million years ago (Mya). These plants were non-vascular plants (e.g., mosses and liverworts) which can be recognized as fossilized spores. Thus, the first land plants could not transport nutrients like sugar, water, or minerals around the plant. Nowadays, it is believed that early land plants had gametophyte dominant life cycles (haploid life phase), while vascular tissues evolved as an adaptation to life on land, in the sporophyte (diploid life phase).
Imagine two species of snakes that live in a tropical rain forest of Malaysia do not typically interbreed. In nature, one species is ground-dwelling and feeds mainly on insects and small amphibians near water, whereas the other snake feeds in the lower to mid-canopy of trees and vines rising from the forest floor. However, at a zoo in Singapore where they were kept in the same gallery exhibit, the two species were observed interbreeding and produced viable offspring. Which of the following reproductive barriers is most likely preventing these species from interbreeding in the forest?
a. habitat isolation
b. gametic isolation
c. reduced hybrid viability
d. a postzygotic barrier
e. mechanical isolation
Answer:
a. habitat isolation
Explanation:
Habitat isolation is a type of prezygotic reproductive barrier caused by differential habitat preferences, thereby lowering the probabilities of mating between individuals living in different habitats. Habitat isolation is a mechanism of ecological speciation that over time leads to divergence of populations and reproductive isolation. In habitat isolation, different species or populations that could interbreed with one another to produce offspring are prevented from mating as a consequence to be isolated by habitat barriers. In India, for example, lions and tigers can mate to produce offspring; however, they don't interbreed due to habitat barriers (tigers are found primarily in rainforests and lions inhabit the grasslands).
20 points
Photosynthesis converts energy from one form to another. Which of
these best describes this energy transformation? *
from kinetic energy to entropy
from light energy to entropy
from chemical energy to kinetic energy
from light energy to chemical energy
Answer:
from light energy to chemical energy
Explanation:
