From which molecules are mRNA molecules transcribed?
A. tRNA
B. rRNA
C. DNA
D. protein
Answer:
C
Explanation:
mRNA molecules are transcribed from DNA molecules. Therefore, option (C) is correct.
Synthesis of mRNA molecules utilising a DNA template occurs during transcription. RNA polymerase and other transcription factors attach to particular sections of DNA known as promoters in the nucleus of eukaryotic cells. The DNA double helix is subsequently unwound by the RNA polymerase, and using one of the DNA strands as a template, it starts to synthesise a complementary RNA strand.
According to the complementary base pairing principles, the RNA polymerase adds nucleotides to the expanding mRNA strand during transcription. While cytosine (C) pairs with guanine (G), adenine (A) in DNA pairs with uracil (U) in mRNA. The mRNA molecule is released and the DNA double helix reforms once the full gene sequence has been read.
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If the objective lenses of a microscope can be changed without losing focus on the specimen, they are said to be ______. A) equifocal. B) totifocal. C) parfocal.D) optifocal.
Answer:
C) parfocal.
Explanation:
A microscope can be defined as an optical device that is typically used to make an enlarged (magnified) image of a minute (small) object and as such reveals all the little information about the object that cannot be seen by the natural human eye.
A microscope is said to be parfocal if its lense is binocular and they can both be in focus.
Hence, if the objective lenses of a microscope can be changed without losing focus on the specimen, they are said to be parfocal.
what are the three processes in the central dogma
Answer:
DNA replication
transcription
translation
Explanation:
Hope this helps!
Brain-List?
What are some animal adaptations that can be found in the desert? Would animals need the same kinds of adaptations in a rainforest? Explain.
Answer:The sloth uses camouflage and moves very slowly to make it difficult for predators to spot.
The spider monkey has long, strong limbs to help it to climb through the rainforest trees.
Explanation:
cartilage has the unique ability to contract to pull the bones and help the body move
True or false
(Anatomy and Physiology)
Answer:
False
Explanation:
Cartilage prevents the bone ends from rubbing directly on to each other while the muscles contract to move the bones associated with the joint.
Cartilage can bend some but not too much or it breaks
Match the phrases below, which relate to photosynthesis, to the category into which they best fit.
Categories: light reactions - light and carbon reactions - carbon reactions
a. produces oxygen
b. produces glucose
c. uses atp
d. produces nadph
e. occurs in chloroplasts
f. produces atp
g. uses water
h. uses nadph
i. requires visible light
Answer: Please see answer in explanation column
Explanation:
---light reactions, also called Photolysis reactions.
Here, after absorbing Light, energy from the sun is being converted to chemical energy bonds which are NADPH and ATP from electrons given off from water as it is being oxidized with the production or release of oxygen.
a. produces oxygen
d. produces nadph
f. produces atp
g. uses water
---Light and carbon reactions
e. occurs in chloroplasts
---Carbon reactions also called Light Independent reactions
Here, energy stored during the light reaction in form of atp and nadph is being used to produce Glucose.
b. produces glucose
C. uses atp
h. uses nadph
The rocks in C horizon are
A
full of water.
B
tiny pebbles.
C
completely solid.
D
cracked and creviced.
Answer:
The answer would be
C.completely solid
Youre welcome<3
Free lime and natural gypsum, in addition to soluble salts, are frequently found in the C horizon. Therefore, option (C) is correct.
What is C Horizon?Free lime and natural gypsum, in addition to soluble salts, are frequently found in the C horizon. Unconsolidated material can be found above bedrock at the C Horizon, which is also referred to as the substratum. It has not undergone enough deterioration to be classified as soil, but it is nevertheless considered to be a layer of a soil profile.
The C horizon is often composed of boulders, cobbles, pebbles, and other types of rocks that have not been worn or have only been lightly weathered. Due to the fact that the layers of soil that are found above the C horizon are typically generated from this material, these rocks are referred to as parent rocks.
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Describe a dinner a marathon runner would eat the night before running the Boston Marathon, and give reasons for your food choices.
A dinner a marathon runner would eat the night before running the Boston Marathon would be rice and chicken. Rice has a simple carbohydrate and will build up the ATP in his system to make his run time better and give him energy. Chicken has a long term energy source that will keep him full and his muscles working throughout the marathon.
What is carbohydrate?Carbohydrates has been defied as the contains biomolecule that contains all the carbon hydrogen and oxygen in a same ratio of 2:1. Carbohydrates are main source of the energy of the body they work as the fuel for the brain, kidneys central nervous system and heart muscle.
[tex]Cn(H2O)n[/tex] has the basic formula for all the carbohydrates. But this has formula have limitation i.e it applies where same amount of carbon and water are use.
Initially the terms carbohydrate has been used to describe the compounds that have really contains the carbohydrates. Because they had simple formula [tex]CH20[/tex].
In modern Era carbohydrates has been classified on the basis of their structure not on their formulae. Such as the aldehydes and the ketones are now known as polyhydroxy.
Therefore, A dinner a marathon runner would eat the night before running the Boston Marathon would be rice and chicken. Rice has a simple carbohydrate and will build up the ATP in his system to make his run time better and give him energy. Chicken has a long term energy source that will keep him full and his muscles working throughout the marathon.
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A man heterozygous for blood type A marries a woman heterozygous for blood type B. What could be the possible blood types of their offspring?
Answer:
Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)
Heterozygous B: BB (h0m0zygous)
AO x BB --> AB, BO
Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.
I hope this answer helps you find what your looking for! :)
Answer:
Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)
Heterozygous B: BB (h0m0zygous)
AO x BB --> AB, BO
Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.
Explanation:
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Which of the following describes the activity of the sympathetic nervous system?
a. It mobilizes when the body experiences extreme situations.
b. It decreases sweat gland activity.
c. It normalizes digestive activity.
d. It conserves energy.
e. It decreases demands on the cardiovascular system.
Johanna took her little brother to the playgrond because he likes to swing
Look at diagram that shows johanna pushing her brother on swing which statement is true about the transformation between kinetic and potential energy while the boy swings?
Answer:
Pls like my answer
Explanation:
I am trying to get point
PLSSS HELP
Mr. and Mrs. Smith go to the doctor to see if there is a possibility that any future children they have will be born with a genetic disease. This is an example of the use of which of the following?
Damage to which structure will most directly disrupt water balance within a single-celled organism? A characteristic common to both diffusion and active transport is that
Answer:
cell membrane
Being color bind is an X-Linked Recessive trait. What are the genotype possibilities for a girl who is colorblind (XB or Xb )?
What are the possible genotype(s) for her father?
What are the possible genotype(s) for her mother?
What are the possible genotypes for a boy who is colorblind?
What are the possible genotype(s) for his father?
What are the possible genotype(s) for his mother?
Explanation: XX because she is female. Since she is not color blind one of the pair has to be XC. Since she is a carrier of color blindness she has to have the recessive gene as well, so the other has to be Xc.
Which of the following are the alleles for a heterozygous pea plant?
A. Gg- Green color
B. GG- Green color
C. gg- yellow color
Heterozygous means the individual has one copy of the recessive gene and one for the dominant gene. That means the genotype will contain one capital letter and one lowercase letter. In this case, which is complete dominance the dominant gene will manifest in the heterozygous form.
The correct answer is A. Gg-Green color
An organism’s genotype is its?
Answer:
Explanation:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. In a more narrow sense, the term can be used to refer to the alleles, or variant forms of a gene, that are carried by an organism
An organism's genotype is its genetic makeup. It is made up of the collection of genes that are inherited from ones parents.
What is genotype?Genotype refers to the composition of an organism. It encompasses the collection of genes that are inherited from ones parents. While the genotype establishes the traits of an organism these traits may not always be evident, in the phenotype.
On the hand the phenotype represents the attributes of an organism, including factors like height, eye color and hair color. Although the genotype plays a role in shaping the phenotype it is also subject to influence, from factors.
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it gathers macules and make them more complex. it also stores them or send them into the cytosol or out of the cell. this organelle also possesses the proteins produced by the endoplasmic reticulum and ribosomes
Answer:
Golgi apparatus
Explanation:
Can surgical mask be disposed in the soil?
Answer:
No
Explanation:
Bcoz they are not Biodegradable masks
Place it Correct spot that’s all tbh
Answer:
All planets have a circular orbit with the sun at the center
1. Which of the students' observations will be most helpful in classifying a cell as either prokaryotic or eukaryotic? O Shape of the cell. O Presence of a nucleus. Presence of organelles. Visible DNA.
Answer:
B) presence of a nucleus
Presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.
What are Prokaryotes and Eukaryotes?Prokaryotes are defined as those organisms which possess cells that lack membrane bound organelles. These are usually single cell organisms. Some examples of prokaryotes include bacteria, archaea, and cyanobacteria (blue-green algae).
Eukaryote are defined as those organisms which possess membrane bound organelles. These contain a central nucleus which is surrounded (bound) by a membrane called nuclear envelope. Some examples of eukaryotes include animals, plants, fungi, and protists.
Thus, the presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.
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Make a listof any four objectivefor food storage
Answer:
apple
grapes
pears
kiwi
Gradual speciation is more likely to be associated with small changes building up in:___________
A. ability to reproduce asexually
B. genes associated with DNA synthesis
C. geographically diverse areas
D. stable environments
Answer:
D. stable environments
Explanation:
In the gradual speciation model, changes in species are slow over time that occur in small steps. Change in speciation rate influences two factors that are environmental conditions and population size.
Gradual speciation mostly occur in large populations that move towards evolution and live in a stable environment. The stable environment provides enough time for the evolution to happen and stable habitat for the new species to grow slowly.
Hence, the correct answer is "D. stable environments".
What are some characteristics of a tree
Answer:
A woody structure.
A single trunk.
The ability to grow tall.
The ability to increase in all dimensions.
Explanation:
An allosteric enzyme differs from a Michaelis-Menten enzyme because the allosteric enzyme:_______
Answer:
Because an allosteric enzyme has multiple active sites
Explanation:
an allosteric enzyme has multiple active sites because it cause a modification binding of an allosteric effector at a certain site which is not the active site. It has multiple active site in which the binding of an active site can affect it's affinity with other active site.
Prior to 1900, Mendel was:
O Recognized as a geneticist
Recognized as the founder of DNA
O Recognized as a botanist
O None of the above
Answer:
Hi... Before 1900 mendel was working about genetic so your answer is none of the above
Which phrase describes the relative age of a rock?
uses the law of superposition to determine which rock is older or younger
can determine the age based on location of a rock within the same layer
requires only one rock to determine the age
can provide the exact age of a rock
Answer:
A. Uses the law of superposition to determine which rock is older or younger.
Explanation:
I majored in Biology
The law of superposition of rocks is used to determine the age of rocks.
A rock is defined as a solid mass of minerals which could be found above or below the earth's surface. Rocks are of different types and they take different forms.
In order to determine the relative age of rocks, the law of superposition is used. This law can be used to determine which rock is older or younger.
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Which are produced as a result of meiosis?
zygotes
chromosomes
tetrads
gametes
Gamates are produced as a result of meiosis
In humans, the products of meiosis are sperm or egg cells ( gamates )
MeiosisMeiosis is a type of cell division which involves the formation of egg and sperm cells.
In se-xually reproducing organisms, body cells are diploid, meaning they contain two sets of chromosomes. During meiosis, diploid cells undergo DNA replication, followed by two rounds of cell division, producing four haploid s -ex cells.
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Which factors affect heat transfer between a warm and a cool substance?
O the time it took to heat the substance, the area of contact, and the specitic heats of the substances
O the amount of time of contact, the area of contact, and the specific heats of the substances
O the time it took to heat the substance, the area of the substances, and the specific heats of the substances
O the amount of time of contact, the area of the substances, and the specitic heats of the substances
Answer: the amount of time of contact, the area of contact, and the specific heats of the substances.
Explanation:
The factors that affect transfer between a warm and a cool substance are the amount of time of contact, the area of the substances, and the specific heat of the substances.
What is the transfer of heat?Transfer of heat is due to a change in temperature. Convection, conduction, thermal radiation, and evaporative cooling are the four types of transfer of heat.
Thus, the correct option is D.
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Sex-Linked Disorder
Answer:
there you go
I hope this helps
1A.
If autotrophs had not evolved on the primitive earth, then the heterotrophs would have probably have exhausted the:________.a. amino acids. b. energy supply. c. oxygen supply d. carbon dioxide supply.
Answer:
C. Oxygen supply
Explanation:
Autotrophs make their own food with carbon dioxide and create oxygen as a byproduct. Heterotrophs need oxygen to create energy and create carbon dioxide as a byproduct. Therefore, if there are no autotrophs, the carbon dioxide in the air won’t be able to be used to turn to oxygen, which heterotrophs need. The heterotrophs will use up all of the oxygen in the air, leaving lots of carbon dioxide behind. This is why we need plants and trees! Thus, the answer is C.
I hope this helps! :)