Gene repression is the switching off of individual genes whose products are needed to maintain the function of the cell such as the production of vital enzymes or cofactors.
Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. The cell reads the sequence of the gene in groups of three bases.
HOPE THIS HELPS your question!
Answer: repression represents a powerful tool, and expressing represents the metabolism
Explanation:
During ____________________________, the chromosomes line up in the middle of the cell and attach to spindle fibers
1.Metaphase
2.Anaphase
3.Prophase
4.Telophase
3. The most common types of plants in the taiga biome are...
A. deciduous trees
B. short shrubs
C. coniferous trees
D. grasses
Why is biomass a better alternative to oil?
A. Biomass does not release carbon dioxide.
B. Biomass creates radioactive waste.
C. Biomass does not need to be burned.
D. Biomass is a renewable resource.
Answer:
D
Explanation:
Biomass does release CO2 (when burned) because it is organic - contains carbon compounds.
Biomass does not create radioactive waste.
Biomass is renewable because it comes from plants, whereas oil takes millions of years to make, so it is non-renewable.
The correct option is (d) Biomass is a renewable resource.
Because it can be created from sources that are renewable and can be continuously replenished, such as garbage and plants, bioenergy, also known as energy obtained from biomass, is a sustainable substitute for fossil fuels. And cut down on our gasoline supply, compromising our national security.Some of the advantages of biomass energy are:-A constant and accessible renewable energy source is biomass.It has no carbon emissions.It lessens our dependency on fossil fuels.Is more affordable than fossil fuels.The generation of biomass gives manufacturers a new source of income.Fewer trash items in landfills.Learn more about advantages of biomass energy brainly.com/question/11381203
#SPJ2
Which of the following statements about nuclear energy is true?
A)
Nuclear energy cannot be contained nor controlled.
B)
Nuclear energy is contained in nuclear bonds.
C)
Nuclear energy is less efficient than other energy forms.
D)
Nuclear energy processing does not affect the environment.
E)
All of the above
Answer:
B) Nuclear energy is contained in nuclear bonds.
Explanation:
Hope this will help
The statement that is true about nuclear energy is:
B) Nuclear energy is contained in nuclear bonds.
What is Nuclear bonds?Nuclear bonds are the strong attractive forces that hold the nucleus of an atom together. These bonds are created by the strong nuclear force, which is one of the four fundamental forces of nature
Nuclear energy is the energy released by the process of nuclear reactions, either by the splitting (fission) or joining (fusion) of atomic nuclei. This energy is harnessed to produce electricity in nuclear power plants.
The other statements are not true:
A) Nuclear energy cannot be contained nor controlled. - This is not true. Nuclear energy can be contained and controlled through proper design and operation of nuclear power plants.
C) Nuclear energy is less efficient than other energy forms. - This is not true. Nuclear energy is a highly efficient source of energy that can produce large amounts of electricity with relatively low fuel consumption.
D) Nuclear energy processing does not affect the environment. - This is not true. The processing and disposal of nuclear waste can have significant environmental impacts, and accidents or leaks at nuclear facilities can release harmful radiation into the environment.
Learn more about Nuclear energy at:
https://brainly.com/question/2240073
#SPJ7
ANYONE KNOW THIS?? NEED ANSWERS ASAP!!
I need help with this question about meiosis
Read the two statements given below.
Statement 1: All living matter at the smallest level is made of cells
Statement 2: New animal cells are formed from pre-existing animals
Which of the following best relates the statement to the correct type of theory? (5 points)
a
Both statements are about scientific theories.
b
Both statements are about everyday life theories.
c
Statement 1 is about an everyday life theory, and statement 2 is about a scientific theory.
d
Statement 1 is about a scientific theory, and statement 2 is about an everyday life theory.
PLEASE HELP! HAS TO BE CORRECT
DNA sequences can act as "tape measures of evolution." Some highly-conserved regions of the human genome (similar to comparable regions in other species) don't code for proteins. Why?
A) Such regions coded for proteins in genomes of distant human ancestors, but over time they became noncoding; however, conserving their sequence remained unchanged.
B) Such regions play a significant role in gene regulation. That is why they remain conservative under the influence of natural selection.
C) Such regions are the sites of DNA recombination. They should remain conservative to provide an accurate recombination process during cell division.
D) Such regions remain conservative because the mutation rate differs along the genome. In other words, such regions remain conservative accidentally.
pretty sure it is b if its not b then im sorry but the others arnt correct since they dont make any sense
7. Once you have taken a bite of an apple, which of the following represents the correct pathway of its nutrients?
A. circulatory system → cell → digestive system
B. digestive system → circulatory system → cell
C. cell → digestive system → circulatory system
D. circulatory system → digestive system → cell
Once you have taken a bite of an apple, digestive system → circulatory system → cell represents the correct pathway of its nutrients. The correct option is B.
What is nutrient?Nutrients are substances found in food that drive biological activity and are therefore necessary for the human body.
To begin the digestion process, the nutrients in the apple are first broken down by the teeth in the mouth and mixed with saliva.
After swallowing, the food bolus travels down the oesophagus to the stomach, where it is further broken down by stomach acid and digestive enzymes.
The nutrients are then absorbed into the bloodstream via the small intestine walls and carried to the liver via the circulatory system.
The nutrients are distributed to the cells throughout the body by the liver to be used for energy and other functions.
Thus, the correct option is B.
For more details regarding nutrients, visit:
https://brainly.com/question/1268939
#SPJ3
Which of the following would change the allele frequencies of a population?
A)Lack of mutation in the DNA
B)Mating is random with no selection occurring
C)A population on an island remains isolated and no one leaves or moves on the island
D) All of the answer choices would change allele frequencies of a population.
Answer: option B.
B)Mating is random with no selection occurring
Explanation:
This will cause change in allele frequency because it's a genetic drift which is the change in the frequency gene variant that is common in a population due to random sampling or random mating. When this occur it lead to a change in percentage or incidence of gene variant in a population since there is random sampling without any selection.
Mating is random with no selection occurring, which would change the allele frequencies of a population.
What would increase the allele frequency in a population?Natural selection can drive microevolution, or a difference in allele frequencies over time, with fitness-increasing alleles becoming more common in the population over generations.
Thus, option"B" mating is random with no selection occurring.
To learn more about allele frequency click here:
https://brainly.com/question/3405614
1. What structures will a blood cell pass through
as it moves through the heart from the vena
cava to the aortic valve?
Right side of the Heart
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
About how many genes are in every human cell?
Answer:
In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. An international research effort called the Human Genome Project, which worked to determine the sequence of the human genome and identify the genes that it contains, estimated that humans have between 20,000 and 25,000 genes.
Explanation:
Which evidence best supports is the theory that organisms, such as whales , have common ancestry and have evolved ? Select all that apply
Answer:
Another evidence of evolution is the convergence of form in organisms that share similar environments.
Fossil record , comparative anatomy, DNA and molecular evidence and biogeography supports the theory of evolution.
What is theory of evolution?The theory of evolution is a scientific explanation for how living species have evolved over time and how new species have emerged. The hypothesis is predicated on the notion that all living things have a common ancestor and have evolved over time by natural selection.
Natural selection is the process through which specific features or characteristics, based on their capacity to aid people in surviving and reproducing in their environment, become more or less prevalent in a population over time.
The idea of evolution is largely regarded as the best explanation for the variety of life on Earth and is supported by a large amount of evidence from disciplines like genetics, palaeontology, comparative anatomy, and biogeography.
Learn more about theory of evolution, here:
https://brainly.com/question/6111443
#SPJ3
which of the following is NOT an acceptable name for the Golgi? A. complex. B.mechanism C. apparatus
Darwin's theory of evolution by natural selection states that living things with
beneficial traits produce more offspring than others do. This produces
changes in the traits of living things over time.
Answer:
so what do u need answered?...
Explanation:
Some dairy farmers want to increase the amount of milk produced by their cows. How can the farmers use selective breeding to increase milk production?
Answer:
By choosing cows that are high milk producers
Explanation:
Answer: By choosing cows that are high milk producers
Explanation:
WHAT ARE THE THREE PARTS OF DNA⁈ ( help due right now !! ) ʅ（◞‿◟）ʃ
1. a phosphate group
2. a sugar group
3. one of four types of nitrogen bases.
Hope I helped and good luck with your assignments!!! ^^
__________________________________________________
1.リン酸基
2.糖基
3.4種類の窒素塩基の1つ。
私があなたの割り当てを手伝って頑張ってくれることを願っています!!! ^ ^
A biome that has a large amount of rainfall, high temperature, and poor soil is a...
A. temperate woodland
B. temperate rain forest
C. tropical rain forests
D. savanna
A biome that has a large amount of rainfall, high temperature, and poor soil is a Tropical rain forests. So, the correct option is (C).
What are Tropical rain forests?Tropical rainforests are defined as rainforests that occur in areas of tropical rainforest climate with no dry season when all months have an average rainfall of at least 60 mm. It can also be called lowland equatorial evergreen rainforest.
The largest rainforests exist in the Amazon in Brazil (South America), the Democratic Republic of the Congo (Africa) and Indonesia (South East Asia). They are also found in Hawaii and on islands in the Pacific and Caribbean.
Vegetation is characterized by large trees and dense vegetation on the ground surface, but due to the high amount of rainfall and the rapid acquisition of nutrients from the decomposition of organic matter by plants, soils in tropical rainforests are generally nutrient deficient and non-porous.
Thus, a biome that has a large amount of rainfall, high temperature, and poor soil is a Tropical rain forests. So, the correct option is (C).
Learn more about Tropical Rain forests, here:
https://brainly.com/question/14835386
#SPJ2
what animal has the strongest bite force
Answer: I think crocodile
Explanation:
Answer:
I'm pretty sure it is jaguar
Which disorder would most directly interfere with the emulsification of fats?
A)bronchitis B)gout C)goiter
D)gallstones
Answer:
Gallstones
Explanation:
which stage or phase of the cell cycle corresponds to a new cell wall being formed
Answer:
Mitotic Phase
Explanation:
Which molecules contain only carbon, hydrogen, and oxygen?
Select all that apply.
carbohydrates
glucose
proteins
O nucleic acids
[tex] \huge \purple{\tt{Answer:}} [/tex]
glucose
The molecule here that contains only carbon, hydrogen, and oxygen is Glucose. So the correct option is B.
What is glucose?Glucose is a monosaccharide or simple sugar. It is a kind of sugar found in honey and fruits. Glucose is the major sugar present in our body.
It is the main source of cellular energy utilized in the process of cellular respiration. Thus, it helps in proper cell functioning and metabolism.
Starch molecules are composed of various monomers of glucose. They are the polysaccharides of glucose. The structural formula for glucose is C₆H₁₂O₆. This means that glucose is only composed of carbon hydrogen and oxygen atoms.
Glucose is a type of Carbohydrate but there are other kinds of carbohydrates that contain elements like nitrogen and sulfur. Proteins and nucleic acids also contain other elements like phosphate, nitrogen, and sulfur.
Thus only glucose is composed of oxygen, carbon, and hydrogen.
Therefore the correct option is B.
Read more about glucose, here
https://brainly.com/question/2396657
#SPJ2
To stop a wound from bleeding, platelets in the blood clump together to form a blood clot. The clot dries into a hard scab to protect the wounded area. Underneath the scab, the blood supplies nutrients and oxygen that help new skin cells form. As the skin regenerates, the wound closes.
Which body systems interact with the integumentary system to close the wound?
A. Circulatory and reproductive
B. Immune and circulatory
C. Reproductive and immune
D. Digestive and endocrine
B. Immune and circulatory systems interact with the integumentary system to close the wound.
What is integumentary system?The integumentary system is the body system that protects the body from damage and disease, and helps regulate body temperature. It includes the skin, hair, nails, and sweat and oil glands.
The skin is the largest organ of the body and serves as a barrier against physical, chemical, and biological agents. Hair and nails provide protection and support, while sweat and oil glands help regulate body temperature and moisturize the skin. Additionally, the integumentary system plays a role in regulating the body's water balance, storing vitamins, and sensing touch and temperature.
Learn more about integumentary system, here:
https://brainly.com/question/29179621
#SPJ2
What is the difference between the control group and the experimental group in a experimental study
If wind power has been used to make electricity for over 125 years, why is it not being used all across the world? Use CER please
Answer:
Due to absence of strong winds and its costly machines.
Explanation:
Wind power is not being used all across the world because strong winds are not present in every region of the world. Strong winds are needed to move wind turbines for the production of electricity. The instruments and machines that are necessary for electricity production from wind are very costly and not everyone has the capability to install it so that's why it is not being used all over the world.
Pls Help!!! will give Brainliest!!!!!!!!!!!!!
Answer:
Example: Grass(producer)--->Grasshopper(Primary)---->blue bird(Secondary consumer)--->Rattlesnake(Teritary)
Example 2:Oak Tree leaves(Producer)--->caterpillar(primary producer)---->Treecreeper(Secondary)---->Hawk(Teritary)
Example 3:Grass(producer)--->Grasshopper(Primary)(again lol)--->Frog(Secondary)--->Snake(Teritary)
(Note:I hope this helps because I learn this food chain in my biology class ^^)
Which of the following have improved farming practices and crop production? Select all that apply.
Increased number of farmers
Sophisticated irrigation
Chemical fertilizers
Chemical pesticides
Answer:
sophisticated irrigation, chemical fertilizers, chemical pesticides
Explanation:
The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.
Need help Fast please Science
Answer:
Im pretty sure it's A
Vascular
plants contain tubelike structures that transport wat
and nutrients, which allows these plants to grow_______
than
nonvascular plants.
Answer:fronds
Explanation:
Mitosis starts and ends with
diploid cells. That means they
have tWO sets of chromosomes
(both parents each contribute a
set). In humans, how many
chromosomes should be in each
of these diploid cells after
mitosis?
6.
Answer:
23
Explanation:
After mitosis two identical cells are created with the same original number of chromosomes; 46. Haploid cells that are generated through meiosis, such as egg and sperm, only have 23 chromosomes, because, remember, meiosis is a "reduction division."