Answer:
The correct answer is - a reduced expression of alpha, beta, and omega subunits of RNA polymerase.
Explanation:
Sigma subunit of RNA polymerase is the subunit that the holoenzyme, the other part of the enzyme, identifies and attaches with the specific DNA site called promotors that is responsible for coding the alpha, beta, and omega subunits of this enzyme.
As it is given that there is a deletion in the sigma subunit due to mutation that results in decreased the sigma factor's binding affinity to the promoter region. That ultimately leads to less or unable to bind properly to the promoter and the level of gene expression to fall or be reduced.
After studying prokaryotic and eukaryotic cells, what do scientists believe?
Answer:
Scientists believe that mitochondria evolved from aerobic, or oxygen-consuming, prokaryotes. ... Eukaryotic cells also contain a variety of structures and organelles not present in prokaryotic cells.
What does GAC code for?
Answer:
DNA codons
Explanation:
Answer:
Aspartic acid
Explanation:
Complimentary base = CTG ( or CUG )
the core technique of modern biotechnology is/are
1)chemical engineering
2)genetic engineering
3)both
4)none
Answer:
I'm just guessing it ok I not sure
3)Both
Explanation:
The region of the stem nearest the seed.
Answer:
B. Hypocotyl
Explanation:
Susan suffered from a heart attack. When the doctors tested the heart muscle they found that she
had an increased ratio of lactic acid to pyruvic acid in her heart tissue. What does this say about
the availability of oxygen in her heart muscle cells?
Answer:
The heart cells had no received adequate oxygen supply.
Which choice refers to a single population ?
a. The zebras
b. The plants
c. The animals
d. The water
Answer:
guy above me is correct
Explanation:
Very rapid (i.e. in 1-2 seconds) responses to maintain normal blood pressure during a sudden decrease in blood volume by hemorrhage can be initiated by Group of answer choices secretion of ADH from the posterior pituitary. vasoconstriction of capillaries. baroreceptors in the aortic arch. vasodilation of precapillary sphincters. Two of the answers are correct.
Answer:
vasoconstriction of capillaries.
baroreceptors in the aortic arch.
Explanation:
Vasoconstriction of capillaries and baroreceptors in the aortic arch are the two quick responses of body to maintain normal blood pressure during hemorrhage. Vasoconstriction is very necessary for lowering acute blood loss during hemorrhage means escape of blood from a ruptured blood vessel as well as maintain body heat and arterial pressure. The function of baroreceptors is to respond to the change in the tension of the arterial wall when blood pressure changes.
what will be the consequences if w do not educate them?
Answer:
they cannot know their doing and there is a posiblity that they fail
Which elements are likely to have similar properties to calcium because they have the same number of valence electrons as calcium
Answer:
The correct answer would be - strontium, magnesium, beryllium.
Explanation:
As we know that the number of the same valence electrons is most likely to exhibit similar physical and chemical properties so the elements of the particular group in the periodic table have a similar number of physical and chemical properties and a similar number of the valence electrons.
For example, group 2 elements are known as alkaline earth metals, and strontium, magnesium, beryllium, and calcium are the same group elements thus, they have the same chemical and physical properties as they have 2 valence electrons.
9. Which nucleus has role in conjugation in Paramecium
a) Mega nucleus
b) Micronucleus
c) Macronucleus
d) Cellular nucleus
( b ) Micronucleus has role in conjugation in paramecium.
The organism's germ line genetic material is kept in the micronucleus. It is in charge of the genetic rearrangement that takes place during conjugation and generates the macronucleus (cross-fertilization). Thus option B is correct.
What Micronucleus role in conjugation in Paramecium?The pairing and subsequent fusion of two paramecia is a process known as conjugation. It is known as a cytoplasmic bridge where they converge. After meiosis, the diploid micronucleus divides into four new micronuclei. The micronuclei of the cell, all except one, break down.
This method doesn't include meiosis or nuclear fusion. It manifests in a single person in the manner described below: Macronucleus deteriorates and vanishes. Eight nuclei are produced after the two micronuclei divide twice through mitosis.
Therefore, Micronucleus has a role in conjugation in Paramecium.
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can someone help me right now
Describe two types of tumors, and indicate which type is harmful and which is not.
A benign tumor is not a malignant tumor, which is cancer. It does not invade nearby tissue or spread to other parts of the body the way cancer can. In most cases, the outlook with benign tumors is very good. But benign tumors can be serious if they press on vital structures such as blood vessels or nerves. A malignant primary tumor is more dangerous because it can grow quickly. It may grow into or spread to other parts of the brain or to the spinal cord. Malignant tumors are also sometimes called brain cancer.
Yeah Why is global warming a
significant environmental
stressor
Answer:
it can destroy animal habitat like the penguin of polar bear. plus it causes droughts and severe storms to happen. also I've heard that in the warmest places you can catch diseases more easily.
A man with AB blood is married to a woman with AB blood. What blood types will their children have
Answer:
A AB and B all three are possible
Viruses cause which of the following human diseases?
O the flu, AIDS and Bubonic Plague
O the flu, AIDS and athlete's foot
AIDS, cold sores and athlete's foot
the flu, AIDS, and cold sores
Answer:
the flu, AIDS and Bubonic Plague
Need help with this will make brainliest if right
Research on the different thermal conductivities of different materials. From the different values of the thermal conductivities give seven example of conductors and seven example of insulators
Answer:
conductors are like silver, gold, copper, steel, sea water, and iron. insulators are rubber, glass, oil, diamond, dry wood, and insulation.
Explanation:
[GT.02]Which of these qualities helps scientists to choose appropriate methods to date fossils?
O punctuality
O honesty
O creativity
O modesty
Answer:
I think it is creativity, c
Explanation:
Why is it important for nitrogen to be more abundant in our atmosphere than oxygen?
A. Oxygen is only breathable if diluted with nitrogen.
B. Nitrogen and oxygen combine to produce weather that is essential for life.
C. Oxygen must be diluted because it is a highly combustible gas.
D. Nitrogen is a heavy molecule that pulls oxygen, a light molecule, to the surface for oxygen-dependent life to use.
Answer:
Oxygen must be diluted because it is a highly combustible gas
Explanation:
Oxygen will burn without nitrogen in our atmosphere
g Classify the statements as describing deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). DNA RNA is a single molecule that can be over 10,000,000 nucleotides long is usually double stranded includes the base thymine can be translated into a protein is the genome for prokaryotic organisms is usually single stranded includes ribose sugar is a single molecule that can form a complex secondary structure
Answer:
DNA:
- is a single molecule that can be over 10,000,000 nucleotides long
- is usually double stranded
- includes the base thymine
- is the genome for prokaryotic organisms
RNA:
- can be translated into a protein
- is usually single stranded
- includes ribose sugar
- is a single molecule that can form a complex secondary structure
Explanation:
Deoxyribonucleic acid (DNA) is the hereditary genetic material of both prokaryotic and eukaryotic organisms, while RNA is the genetic material of many viruses. DNA is a double helix molecule composed of four types of nucleotides: a nitrogenous base (Adenine, Thymine, Cytosine and Guanine), a five-carbon sugar (i.e., deoxyribose), and a phosphate group. On the other hand, RNA is usually a single-stranded molecule whose nucleotides contain ribose sugars and Uracil bases replace Thymine bases. During translation, a type of RNA molecule referred to as messenger RNA (mRNA) is used as template to direct the synthesis of a polypeptide chain (protein). This RNA molecule can fold to form stable double-stranded RNA hairpins (i.e., secondary structures).
Please help, (Genetics question)
Question:
Soil is sometimes called a bridge between life and the non-living world. Explain what that means.
es )
Explanation:
The non living things in its environment is called a " matrix,"
A matrix is what supports a non living thing to reproduce, triple its existence & reproduce in mass quantities, like soil bacteria, and others..
. The graph below represents the relationship between the amount of spring rainfall recorded at a pond and the number of frogs in that pond. The data were collected over five spring seasons. What is the number of frogs in the pond when the rainfall was 15 cm? *
Answer:
Use the drawing tools to form the correct answer on the graph.
Graph the line that represents this equation:
Explanation:
Inclusion bodies may contain which of the following?
Polyhydroxybutyrate
Ribosomes
DNA
RNA
Inclusion bodies may contain Ribosome, DNA, and RNA. The correct option is B, C, and D.
What is an inclusion?It is a type of body that is present in neurons, tissue cells, and like red blood cells, bacteria, viruses, etc. It is a type of protein.
These bodies contain or store fats and sugars in animals and in plants it store glycogen.
Thus, the correct options are B, C, and D.
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What is biomass burned to produce
Answer:
Burning either fossil fuels or biomass releases carbon dioxide (CO2), a greenhouse gas. However, the plants that are the source of biomass for energy capture almost the same amount of CO2 through photosynthesis while growing as is released when biomass is burned, which can make biomass a carbon-neutral energy source.
What is the term for a number or amount of things?
A. Force
B. Quantity
C. Mass
D. Coordinate
Answer:
B:Quantity
Explanation:
hope this helps
How does halving the hawk population affect the grass, rabbits, and snakes
Answer:
Rabbits and snakes increase in number but grasses decrease in number.
Explanation:
If the population of hawk is decreases to half then the population of rabbits and snakes increases because hawk feeds on rabbits and snakes. The amount of grasses also decreases due to increase in the population of rabbits which feeds on these grasses. Hawks controls the population of rabbits and snakes when these hawks are decrease in number then the ecosystem will destabilize by increasing number of rabbits and as a result vegetative cover decreases quickly.
In which kingdom would you place an organism that reproduces by spores, is made of many cells enclosed by cell walls, have a nucleus, and are heterotrophs?
plant
fungi
bacteria
animal
Answer:
Fungi
Explanation: Fungi reproduce by spores, they are enclosed by cell walls, they have a nucleus as they are eukaryotic, and they are heterotrophs as they do not contain chloroplasts
Question 2 of 10
Which of the following is a product of fossil fuel combustion that contributes
to the greenhouse effect?
A. N2
B. O,
C. CO2
D. H2O2
SUBMIT
What is the complementary strand of DNA for the following strand of DNA: ATTCTAGGCTCG
Answer:
TAAGATCCGAGC
Explanation:
I believe this is the answer, A and T are complimentary and C and G are complimentary.
3. How do nutrients and other materials move in fungi?
Answer:
Nutrients and other materials from the environment are absorbed through mycelia. The branching mycelia have a high surface-area-to-volume ratio which allows the absorption of nutrients to be more efficient. Fungi may even digest nutrients by releasing enzymes into the environment.
Explanation:
I have a strange feeling that this isn't the answer you were looking for.