Human red blood cells can live from two to four months without a nucleus, and yet they continue to synthesize hemoglobin. This Group of answer choices is a chemical process that does not require continued living pathways; the red blood cells are essentially dead after they lose their nuclei. suggests that there is a low level of RNA polymeraseto degrade the mRNA. means that the necessary ribonucleases are continually translating DNA. means that both the necessary mRNAs must persist and there must be a low level of RNA-degrading enzymes present.

Answers

Answer 1

Answer:

means that both the necessary mRNAs must persist and there must be a low level of RNA-degrading enzymes present

Explanation:

Mature red blood cells (also known as erythrocytes) don't contain nuclei. The red blood cells that enter the bloodstream eject their nuclei in order to have more space for transporting hemoglobin, a protein whose main function is to bind molecular oxygen. Erythrocytes have a life span period of three (3) to four (4) months. During this period, the mRNA of the hemoglobin genes must remain intact in order to synthesize hemoglobin proteins (i.e., their subunits). Moreover, in mature red blood cells, the levels of the enzymes involved in the degradation of cytoplasmic mRNA (ribonucleases) must also be low to avoid bulk mRNA degradation.


Related Questions

During MEIOSIS, an event called crossing over occurs. Explain what happens during this event.​

Answers

Answer:

During meiosis, an event known as chromosomal crossing over sometimes occurs as a part of recombination. In this process, a region of one chromosome is exchanged for a region of another chromosome, thereby producing unique chromosomal combinations that further divide into haploid daughter cells.

A blue-eyed myopic woman from a marriage with a brown-eyed man with normal vision gave birth to a brown-
eyed myopic girl and a blue-eyed boy with normal vision. The gene for myopia (B) is dominant over the gene for
normal vision (c), and the gene for brown eyes (C) is dominant over the gene for blue eyes (c). What is the
probability of the birth in this family of a brown-eyed child with normal vision?
Выберите один ответ:
a. 50%
O b. 75%
c. 0%
O d. 25%​

Answers

Answer:

option b 75%

Explanation:

this is the answer I guess

Answer:

The answer is option B 75%

Explanation:

The probability of birth of a brown-eyed child with normal vision is 75%

thank you.

This sample of air at 35°C and 60% relative humidity holds ____ grams/cubic meter of water vapor. The same sample of air at 40°C can hold a maximum of 50 grams/cubic meter of water vapor. If the air currently holds 30 grams/cubic meter, then its relative humidity is ____%.

Answers

Answer:

Since a sample of air at 35 ° C and 60% relative humidity holds 26.25 grams / cubic meter of water vapor. The same sample of air at 40 ° C can hold a maximum of 50 grams / cubic meter of water vapor. If the air currently holds 30 grams / cubic meter, then its relative humidity is 60%.

Explanation:

To solve the following question, the following calculations must be performed:

If 40ºC can have a maximum of 50 grams per cubic meter of water vapor, this would imply a total of 100% humidity. Thus, if 35º had 100% humidity, the amount of grams per cubic meter of water vapor would arise from the following calculation:

40 = 50

35 = X

35 x 50/40 = X

1750/40 = X

43.75 = X

Now, if this implies 100% humidity, to determine 60% humidity the following calculation must be carried out:

100 = 43.75

60 = X

60 x 43.75 / 100 = X

2625/100 = X

26.25 = X

Therefore, if with 100% humidity you have 50 grams per cubic meter of water vapor, with 60% humidity you would have 30 grams of water vapor per cubic meter.

Answer:

24

60

Explanation:

4.
Which of the following major biomes is most similar to that of the tundra biome?

desert

grassland

temperate forest

chaparral

Answers

Answer:

desert

Explanation:

they both have plants and animals that need special adaptations to survive there

Investigator Sheer is testifying about DNA evidence she found at the crime scene that matches the suspect on trial. The prosecutor asks Investigator Sheer to explain her conclusion that the DNA samples matched.

What would be a good explanation for her to give to the jury?

That at least 10 different points on the two samples matched
That the DNA profile matches someone with the suspect's hair color and skin tone
That she found one point that matched on the two DNA samples
That the DNA samples showed no clear points in common

Answers

Answer:

That at least 10 different points on the two samples matched

Explanation:

I would say this because it seems like the most reliable way to explain her conclusion that the DNA samples match.

Which climate is most likely found in a low-pressure belt?

A. Rain Forest
B. Rain Shadow
C. Desert
D. Mediterranean

Answers

Answer:

A

Explanation:

Answer:

Its desert

Explanation:

Took the quiz.A PE X

Definition: This organ has many functions, including producing bile and synthesizing carbohydrates and fats.

What is the word?

Answers

The liver is the correct answer I think

pls help me. with the help of diagram describe the structure of stomach​

Answers

Answer:

The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food.

Hope this helps:)

Ladybird is a type of bird.
True
False

Answers

Answer: it’s false

Explanation: ladybird is a beetle

Answer:

true answer because lady bird has light bone and flight feadures

- Which occurrence is the result of the cell cycle in unicellular organisms?
A. cell repair
B. cell growth
C. cell replacement
D. cell reproduction

Answers

Answer:

D

Explanation:

Cell reproduction is the result of the cell cycle in unicellular organisms. The correct option is D.

What is cell reproduction?

Cells split to produce multiple cells with similar, if not identical, contents. This process is known as cellular reproduction.

Nuclear division during mitosis produces two somatic cells that are genetically identical to the parent cell and have the same genetic complement.

Asexual reproduction in prokaryotes takes the form of cell division in unicellular organisms.

When an organism splits in half, it creates two totally distinct daughter cells, a process known as binary fission. The daughter cells are identical to the parent cells genetically.

Most of the time, Paramecium reproduces asexually via budding, however in poor circumstances, they produce sexually.

Unicellular organisms have a variety of asexual reproduction strategies, including multiple fission, fragmentation, and budding.

Thus, the correct option is D.

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The DNA sequence TTT codes for the amino acid lysine. The DNA sequence TTC

also codes for lysine. What can you conclude from this information?

Answers

Answer:

The genetic code is degenerate and therefore mutations may go unnoticed.

Explanation:

Each triplet of nucleotide bases, which is known as a codon, encodes for a specific amino acid during translation. However, a single amino acid may be coded by different codons. It is for that reason that the genetic code is considered to be degenerate. In this case, Lysine amino acid can be encoded by both TTT (UUU in the mRNA) and TTC (UUC) codons, thereby a mutation T>C at the third nucleotide codon position does not affect the resulting protein (i.e., it is a silent mutation).

What is meant by the term "UV"? In your answer, please explain how it
impacts humans and what it has to do with the atmosphere.

Answers

Answer:

The term UV stands for Ultraviolet.

Explanation:

Ultraviolet light is a form of electromagnetic radiation which is shorter than that of visible light, but longer than X-rays. This impacts humans because it can provide harmful effects. For example, UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles and leathery skin. They also cause eye problems. However, our atmosphere blocks a lot of the UV rays from the sun which is amazing because if we were every exposed to it, we would die lol

"Ultraviolet light can't be seen by the human eye but is a part of sunlight. It can be harmful to us if we are exposed to it (sunburn!) but it is mostly absorbed by the atmosphere. The presence of UV light in sunlight can be shown by using fluorescing UV-sensitive beads."

Hope that helps!

what three phases of the cell cycle are considered interphase

Answers

Answer:

The cell cycle has three phases that must occur before mitosis, or cell division, happens. These three phases are collectively known as interphase. They are G1, S, and G2. The G stands for gap and the S stands for synthesis.

Explanation:

The three phases of the cell cycle that are considered interphase include G1, S phase and G2.

The cell cycle can be divided into the interphase and mitotic (M) phases.

The interphase can in turn be divided into a Growth G1 phase, synthesis (S) phase and Growth G2 phase.

The synthesis of the genetic material (DNA) occurs in the S phase, whereas in G1 and G2 the cell synthesizes all materials required to enter into cell division.

In conclusion, the three phases of the cell cycle that are considered interphase include G1, S phase and G2.

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Which 2 statements explain how in Earth worms oxygen system helps provide itself with oxygen

Answers

Answer:

i think oxygen from the surrounding is,obtained through the plasma membrane of an earth worm by the process called diffusion

Albinism in humans can be caused by recessive mutations in different genes that cause a total lack of melanin pigment. A complementation test would be available when two people with albinism mate to produce offspring. If the two people carry mutations in different genes that each cause albinism, what frequency would albinism occur in their children?

Answers

Answer:

none (zero frequency)

Explanation:

The complementation test is widely used in genetics for assessing whether two mutations associated with a phenotypic trait represent two different gene variants of the same gene (i.e., two alleles of the same gene) or if they are mutations associated with two different genes. In a recessive trait, the offspring must receive one recessive allele from each parent in order to show the recessive phenotype (in this case, albinism). Moreover, in heterozygous individuals for a trait that exhibits complete dominance, recessive alleles always are masked by dominant alleles. Albinism is a multigenic (polygenic) recessive trait, thereby individuals who carry recessive mutations causing albinism on different genes will have zero probability (none) of having offspring with albinism.

Answer:

albinism frequency ---> 3/4 = 75% = 0.75 of the progeny will be albino.

Explanation:

Available data:

Albinism can be caused by recessive mutations in different genes that cause a total lack of melanin pigment.Two people with albinism mate to produce offspringThe two people carry mutations in different genes that each cause albinism  

Let us say that genes A and B are involved.

Gene A: AA and Aa individuals will express pigments, while aa individuals will be albinosGene B: BB and Bb individuals express color, while bb are albinos.    

Cross:  two people with albinism that carry the mutation in different genes

Parentals) Aabb    x    aaBb  

Phenotype) Albino both parents

Gametes) Ab, Ab, ab, ab  

                aB, aB, ab, ab

Punnett square)    Ab         Ab         ab         ab

                    aB    AaBb     AaBb    aaBb    aaBb

                    aB    AaBb     AaBb    aaBb    aaBb

                    ab    Aabb      Aabb    aabb    aabb

                    ab    Aabb      Aabb    aabb    aabb

F1) 12/16 will be albino

     4/16 will express color

     4/16 will be Aabb

     4/16 will be aaBb

     4/16 will be aabb

12/16 = 3/4 = 75% = 0.75 of the progeny will be albino.

Question 4 of 10
If you know the mass and volume of an object, what can you calculate?
A. The object's height
B. The object's density
C. The object's temperature
D. The object's length

Answers

Answer:

B

Explanation

m/v

The answer must be B

3. Some organisms have traits that help
them survive in certain situations,
while others of the same species do
not. These differences happen by
due to genetic variation through
sexual reproduction,
chance
planning

Answers

Through sexual reproduction

Answer:

it is chance

Explanation:

i took the  test

What temperature does it need to be to sleet?

Answers

The temperature to sleet needs to be at 32 F or 0 C.

32 degrees F or 0 degrees C

how many phenotypes can be produced by a pair of co-dominant alleles (BW x BW)​

Answers

It’s 1 chicken burger

Answer:

4

Explanation:

There is a 25% chance of it being BB, 50%  of it being BW, and a 25% chance of being WW.

What are the tiny blood vessels that are in contact with the cells of the body? | (5 Points)​

Answers

Answer:

Capillaries

Explanation:

The answer above is the correct

n the classification of organisms, which is the correct order of ranks?

Answers

The current taxonomic system now has eight levels in its hierarchy, from lowest to highest, they are: species, genus, family, order, class, phylum, kingdom, domain.

1. The diagram below represents part of Earth's latitude-longitude system
What is the latitude and longitude of point L?*
45°
30°
15° 0°
15° 30° 45°
30°
N
20°
10°

LI
10°
20°
30°
O (A) 5º E 30°N
(B) 5° N 30°E
(C) 5° W 30° S
O (D) 5° S 30°W

Answers

Answer:

The answer is option D hopefully this helps

How are emergency preparedness and response interdependent on each other?
O The population recognizes the need for both processes.
O Public health is constantly concerned with both fields.
O The two processes occur separately from each other.
O The success of one depends on understanding the other.


Answers

Answer:

The answer is D) The success of one depends on understanding the other.

Explanation: Did the lesson and got the answer correct.

When is S-phase complete?​

Answers

Answer:

S phase. In S phase, the cell synthesizes a complete copy of the DNA in its nucleus. It also duplicates a microtubule-organizing structure called the centrosome. The centrosomes help separate DNA during M phase.

Answer:

we say that S phase is complete when each chromosome has been duplicated

Explanation:

How .....................................................................................................................

Answers

Answer:

how? what do you mean

Explanation:

how what :)gl

Answer:

um how what?

Explanation:

How are gymnosperm seeds and angiosperm seeds different?

Answers

Answer:

angiosperms have seeds that are closed within an ovary, gymnosperms have no flowers or fruits, and have unenclosed seeds on the surface of scales or leaves

True or False: During asexual reproduction, the organism that is produced is genetically identical to the parent organism. (If your answer is false, then correct the statement to make it true.) ​

Answers

True

Hope this helps!

Answer:

True.

Explanation:

Asexual reproduction, the simplest and most primitive method of reproduction, involves a single parent and produces a clone , an organism that is genetically identical to the parent.

in Ponus sp male cone matured earlier than female cone describ how this species

encures the Success of pollination ?

Answers

Answer:

The correct answer is - to produce more pollen grains.

Explanation:

The maturity of the Pinus sp. male cones takes place before the female cones which are due to ensure that there are more pollen grains available. The higher the number of pollen grains is better for surrounding the female cones when it matures.

This helps in pollination to be species-specific rather than pollinate by any other flower. This feature of early maturation result in easy pollination of the Pinus species.

Whales, sharks, and penguins, all in different classes of animals, have streamlined bodies with fins or flippers for efficient movement in water.

Ceovolution
Convergent Evolution
Divergent Evolution ​

Answers

Answer:

I believe it would be Convergent Evolution

Understanding the REDOX tower. Group of answer choices More negative E values mean: [ Choose ] More positive E values mean: [ Choose ] Compounds on the right side of the slash are: the reduced form of the compound Compounds on the left side of the slash are: the oxidized form of the compound Compounds at the top of the tower are more likely to: [ Choose ] Compounds on the bottom of the tower are more likely to:

Answers

Answer:

More negative E value means More likely to accept electrons.

More Positive E value means More likely to donate electrons.

Compounds on the right side of the slash are the reduced form of the compound.

Compounds on the left side of the slash are the oxidized form of the compound.

Explanation:

Redox tower is formed by reduction oxidation reaction which transfer of electrons happen between two species. It is a chemical reaction in which oxidation number of ions changes due to gain or loss of electron.

Redox reactions involves loss/gain of electrons.

A redox reaction equation is one in which a chemical specie either donates or accepts electrons. If the value of E is negative, the specie most likely donates electrons while a positive E shows that the specie readily accepts electrons.

The compound on the left side of the slash is oxidized while the one on the right side of the slash is reduced.

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Try 6-10 out and Ill give you brainliest A.1. Answer the following questions very briefly.1. What is pollution?2. How does pollution affect the environment?3. How does the reduction of the ozone layer affect us?.4. Mention four different kinds of pollution.5. What are the two chief causes of environmental pollution?6. What is the main cause of water pollution?7. Mention any two causes of noise pollution.8. What is the most disturbing consequence of increasing pollution?A.2. Which words in the passage mean the following?1. dangerous.2. disproportion3. intrusion4. permanent Which of the following inferences about the founders (authors) of this document is best supported by the following passage (paragraph 1)? How did segregation impact Louisiana society in the late 1800s and early 1900s? A It was an attempt by private citizens, without government support, to keep blacks and poor whites from participating in public events. BIt provided nothing more than separate schools and churches for blacks and whites. C It established laws that gave blacks the right to use any form of public transportation whites used. DIt created two separate worlds that kept blacks and, in many cases, poor whites, from interacting at all. You hang a swing from a live tree branch that is roughly parallel to the ground. What will likely happen over time as the tree grows? Select all that apply. What caused tensions between Athens and Sparta? What did these tensions lead to? 10. Based on how the story concludes, which would be most likely to occur next if the story were to continue?A. Governail would visit the plantation and Mrs. Baroda would ignore him.B. Governail would accept the invitation and Mrs. Baroda would go to her aunt's house.C. Governail would visit the plantation and Mrs. Baroda would make a move on him.D. Governail would decline the invitation and Gaston would challenge him to a duel. Lines s and t are parallel. The slope of line s is 3/2 . What is the slope of line t ? Egypt became tremendously wealthy during the New Kingdom. Which ofthe following is NOT a reason for this new wealth? 1.conquests2.timber and oil exports3.trade4.gold mines in Punt A garden is made up of flowers and shrubs in the ratio 6:11. If there are 48 flowers in your garden, how many shrubs are there?The answer, please ASAP Simplify the expression: (3 7i)(2 5i) Why did Walter ask Ruth what was wrong with her? *O a. Her apron was on wrong side out.O b. She ran to the bathroom and vomited.O c. She was crabby and tired looking.O d. She burned his eggs and toast. You have to spend less than $500 at the mall. Each pair of pants costs $25 and each shirt costs $10. Write an inequality to represent the situation. Let x represent the number of pants you buy and let y represent the number of shirts you buy. 23h^3-46h^2-48+24h pls help PLEASE HURRYYYYY Andrew Jackson had a very interesting past. This past made him popular with many Americans at the time. Which of the following is NOT true about Andrew Jackson?\He went from "rags to riches" which means he went from poverty to wealth and power.He fought in the Revolutionary War as a childHe was shot while defending the honor of his wifeHe was a war hero from the Civil War What is the meaning of the word reconnoiter as it is used in this sentence?That done, he picked up the flashlight again and started to reconnoiter in the corridor,trying one door after another. What is a boot sector A firsthand report or eyewitness account is an example of what type of data source? A) PrimaryB) SecondaryC) Oral HistoryD) Teteriary The relationship between photsynthesis and cell respiration is the driving factor behind how energy flowsand matter is able to cycle through the ecosystem. True or false Which group dominated the life of towns during the Middle Ages? a-Lords b-Merchant Guilds c-Knights d-Church Leaders