Answers
Answer:
The correct answer is - in the sickle-cell hemoglobin is the replacement of glutamic acid with valine in the β-globin amino acid chain.
Explanation:
Sickle cell anemia has a mutant gene in which that produces has valine amino acid instead of glutamate in the hemoglobin protein. In the given question the structure of the protein has only one difference that is the replacement of the glutamic acid in normal hemoglobin to valine in the β-globin amino acid chain in the mutant protein.
Valine 6 (beta chain) binds to a different hydrophobic patch (on the alpha chain and causes the disease in sickle cell anemia cases.
Related Questions
Please help It is making me cry
Answers
Answer:
What are you supossed to be doing
Explanation:
Answer:
Can you give me the answers?
Explanation:
As DNA is unzipping this enzyme comes in and begins synthesizing mRNA
A. RNA primase
B. RNA polymerase
C. DNA primase
D. DNA polymerase
Answers
Why? - RNA polymerase, an enzyme in the cell, is responsible for creating mRNA from the correct gene. RNA polymerase is similar to DNA polymerase, but it makes an RNA strand rather than a DNA strand. RNA polymerase attaches to the promoter region of a DNA helix.
HELPPPP pls I need answer fast like flash
Answers
Answer:
and im here hi
Explanation:
was i fast enough?
PLEASEEEEE HELP!! TY
1. What is the overall purpose of mitosis and meiosis?
2. Why is it important that DNA is replicated prior to cell division?
3. How are normal cells and cancer cells different from each other?
4. Describe mistakes that can occur during the cell cycle and cause human disorders.
Answers
Mitosis aims to create daughter cells that are completely genetically similar to their mothers, with no extra or less chromosomes. In contrast, meiosis serves a single function in the human body that is the creation of gametes.
What is cell division?The process by which a parent cell divides into two daughter cells is known as cell division. Cell growth and chromosome replication precede cell division, which often happens as part of a longer cell cycle.
Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome.
Grow in the absence of signals instructing them to do so in cancer cells. Only when they get such signals do normal cells expand. Disregard cues that would typically instruct cells to cease dividing or die.
Aneuploidy is a condition when there are either too many or too few chromosomes in the daughter cells produced during mitosis.
Thus, this is the overall purpose of mitosis and meiosis.
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1. The overarching goal of mitosis is to ensure cell division and the transfer of genetic material to daughter cells for tissue repair, growth and development.
2. To maintain genetic integrity, DNA replication is necessary prior to cell division.
3. Cancer cells have uncontrolled growth, escape cell death and lack contact inhibition, whereas normal cells have controlled cell division, experience programmed cell death and show contact inhibition.
4. The disorders in humans can result from errors in the cell cycle. Diseases such as Down syndrome are caused by abnormal chromosomes. Gene changes can affect the development of cancer.
Meiosis produces gametes for sexual reproduction, while mitosis assures cell division for growth, development, and tissue repair. Accurate transmission of genetic information and preservation of genetic integrity in daughter cells depend on DNA replication prior to cell division.
Whereas cancer cells have uncontrolled proliferation, escape from cell death, and lack contact inhibition, normal cells have regulated division, programmed cell death, and appear to have contact inhibition. Human disorders such as chromosomal abnormalities (such as Down syndrome), gene mutations that cause cancer, errors in DNA replication or repair that cause genetic disorders, and cell cycle control that leads to uncontrolled cell division and tumor formation, all of which Mistakes made during this can have consequences. cell cycle.
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helppp, i need this asap
Answers
A determined the gender
B and D is part of mitosis not meiosis
The diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.
What exactly is the significance of the cross-over in meiosis?Crossing over is important in meiosis because it occurs when homologous chromosomes exchange genetic material, resulting in the formation of new combinations of genetic information and increasing genetic diversity in the population. As a result, evolution occurs, and unique offspring are produced.
Hence, the diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.
Learn more about the cross-over in meiosis here.
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Which of these is not true for the crust?
Group of answer choices
You can dig through it
It's split into plates
It's the thinnest layer of the earth
It's made of granite and basalt
pls i need help it’s a test!
Answers
Answer:
I guess the answer is d ......
what are the helpful measures to conserve human energy??
Answers
Answer:
Adjust your day-to-day behaviors
Energy conservation can be as simple as turning off lights or appliances when you do not need them. You can also use energy-intensive appliances less by performing household tasks manually, such as hang-drying your clothes instead of putting them in the dryer, or washing dishes by hand.
Why scientific naming is necessary?
Answers
Answer:
The correct answer would be - to communicate unambiguously globally.
Explanation:
In different locations on the earth or countries, there are thousands of languages present, and each language has a name for the different species or different organisms that leads to confusion and tough to take the record.
Therefore, there is a two-part scientific name system proposed for every species first name for the genus and second part for the species, it is called "binomial nomenclature." It helps and allows to communicate unambiguously about the species of different organisms globally.
Condensation occurs in clouds. Explain how and then explain what happens with the clouds gain too
much condensation
Answers
100 POINTS!!!! I WILL GIVE BRAINLIEST TO WHO ANSWERS CORRECTLY!!!!!!!!!!!!
Please give a food web for a blue viper
Answers
Answer:
i think mice
Explanation:
please give brainliest
Which organelle is generally larger in plant cells than in animal cells?
A mitochondrion
B. nucleus
C. ribosome
D. vacuole
Answers
Answer:
D.VACUOLE
Explanation:
4 ( 3x+10y=54 and x=y+5 )
Answers
Answer:
x−y=9 , x+y=6
4x+4y=1
, 6x−y=1
x2−y=2
, 2x−y=−1
Explanation:
Help (will give crown for answer)
Answers
Answer:genes
Explanation:
Which researcher theorized that hypnosis comes about as a form of roleplay between hypnotist and subject?
A. Ernest Hilgard
B. Theodore Sarbin
C. Theodore Barber
D. Milton Erickson
Please select the best answer from the choices provided
А
B
Ο Ο Ο Ο
С
D
Save and Exit
Next
Submit
Mark this and return
Answers
Answer:
D. Milton Erickson
Explanation:
Just took the test! Please mark me the Brainliest! peace and love
Milton Erickson is the researcher who theorized the hypnosis that comes out form the roleplay of the hypnotist and subject.
He has dedicated his life to the field of hypnotism and is committed to scientific methodology.
He was one to specialize in hypnosis and family therapy.He is noted for his approaches in the uncoinsuous mind.Hence the option D is correct.Learn more about the that hypnosis comes about as a form.
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please help its due in a hour!!!!!
Answers
Answer:
1. The difference between the normal hemoglobin protein DNA sequence and the sickle cell hemoglobin DNA sequence is a base to base shift, in this case adenine (GAG) to thymine (GTG).
2. The difference affects the amino acid sequence of the protein by replacing glutamic acid (Glu) with valine (Val).
Explanation:
In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the amino acid sequence of globine β, incorporating valine instead of glutamic acid. This represents a molecular mutation - point mutation - by subtitution, which corresponds to missense mutation.
Normal hemoglobin protein in a RBC
DNA CTG ACT CCT GAG GAG AAG TCT
Amino acids Leu Thr Pro Glu Glu Lys Ser
Sickle cell hemoglobin protein in a RBC
DNA CTG ACT CCT GTG GAG AAG TCT
Amino acids Leu Thr Pro Val Glu Lys Ser
When GAG is transcribed to mRNA, the CUC codon is obtained, which codes for glutamic acid. Thymine substitution causes the DNA sequence to change to GTG, which is transcribed as CAC, the codon that encodes the amino acid valine. The change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease.
link between the struction and function of water molecule
Answers
The answers to these questions ?
Answers
Answer:
1. Lactose, H2O, and lactase.
2. Galactose and glucose.
3. You converted lactose, H2O, and lactase into galactose and glucose.
Explanation:
I don't know about the last one so I would do that one yourself because we can't see what the reaction was from.
En un cruce entre peces naranjas y peces grises se obtiene una generación (f1) de 50% peces grises . Realice el cruce y explique lo ocurrido dato: el color naranja es dominante sobre el color gris
Answers
Answer:
Uno de los progenitores es heterocigoto para color naranja (Nn) y el otro parental es homocigoto recesivo para gris (nn). Al haber una cruza entre un homocigoto recesivo y un heterocigoto, la 50% de la progenie expresa color naranja (Nn), mientras que el otro 50% expresa color gris (nn).
Explanation:
Datos disponibles:
Cruce entre peces naranjas y peces grises50% de la F1 son peces grisesNaranja dominante sobre grisPodemos nombrar el alelo dominante para color naranja N, y al alelo recesivo para color gris n.
Para que en un cruce entre dos fenotipos distintos, el 50% de la primer camada exprese uno de estos fenotipos, entonces uno de los parentales debe ser heterocigoto, mientras que el otro parental debe ser homocigoto recesivo. De esta forma 50% de la primera generación expresara uno de los fenotipos, mientras que el otro 50% expresará el otro fenotipo.
Supongamos que uno de los parentales lleva el genotipo Nn, y el otro parental es nn.
Cruce:
Parental) Nn x nn
Gametas) N n n n
Fenotipos) Naranja Gris
Cuadro de Punnett) N n
n Nn nn
n Nn nn
F1) 2/4 = 1/2 = 50% de la progenie tendrá genotipo heterocigoto, Nn
2/4 = 1/2 = 50% de la progenie tendrá genotipo homocigota recesivo,
nn
50% de la progenie será color naranja (Nn)
50% de la progenie será color gris (nn)
Scientists are studying the bacteria living in termites because they want to
genetically engineer......
Bacteria that can resist pests on crops.
Bacteria that can create ethanol from left over plant material.
Bacteria that create a vaccine.
Bacteria that create antibiotics.
Answers
Answer:
B. this is why Those bacteria may contain genes that will help convert plant material to ethanol. so B. and if it's wrong then sorry but if it's right u welcome ;)
Bacteria that can resist pests on crops.
The following information should be considered:
In the case when the scientist should studying the bacteria that lived the termites so it should resisted the pest on the crops. These kind of bacterias should comprise of genes that would helps transform plant material to ethanol.Learn more: https://brainly.com/question/5303391?referrer=searchResults
What is the chloroplast?
Answers
where photosynthesis takes place
Condensation: the ______ off of ______ in the air in the ______
Answers
Weather balloons are sent into the atmosphere to record: (Select all that apply)
humidity
temperature
wind
pressure
precipitation
Answers
Answer:
temperature pressure moisture
Explanation:
From my notes hope this helps.
Answer:
temperature pressure moisture
Explanation:
Multicellular organisms contain organ systems. Which of the following BEST describes the organs in an organ system?
о A. The organs in an organ system are made up of similar cells.
O
B. The organs in an organ system are made up of similar tissues.
C. The organs in an organ system work together to perform a specific function.
O
D. The organs in an organ system work together to perform all the functions a multicellular organism needs to maintain homeostasis.
Answers
Answer:
C. The organs in an organ system work together to perform a specific function.
Explanation:
The definition of an organ system is a "group of organs that work together as a biological system to perform one or more functions". Each organ in a system does a different job in order to achieve the same goal. For example, the stomach breaks down food, and the intestines gather nutrients but the goal of both is to digest food.
Why are the best index fossils from species that only existed for a short period of time ?
Answers
Answer:
Because once they were very common they disappeared after the mass extinction event. ... Many geologic periods were defined by events that made natural boundary to the period.
Answer: Because once they were very common they disappeared after the mass extinction event.
Explanation: Hope this helppssss!!! :)
According to the base-pairing rules for DNA, which of the following statements
NOT true?
A always pairs with T
C always pairs with G
T always pairs with G
T always pairs with A
Answers
Answer:
T always pairs with A
Explanation:
I think so I'm super sorry if its wrong :)
According to the base pairing rule, guanine always forms a bond with cytosine, while adenine always pairs with thymine, T is not paired with G, hence option C is correct.
What is base-pairing in DNA?Because it is RNA, there is no complementary base pairing between the bases adenine and thymine in DNA. Uracil, which has a structure remarkably similar to that of thymine, is present in place of thymine.
Base pairing rule, guanine always forms a bond with cytosine, while adenine always pairs with thymine structure of DNA is created by the binding of these base pairs
Although they keep the two strands of DNA together, they are not strong enough to withstand replication.
Therefore, the base pairing rule, guanine always forms a bond with cytosine, while adenine always pairs with thymine, hence option C is correct.
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Can you list some facts about Food webs.
Answers
Answer:
A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.
Explanation: A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
What would happen to a cell if placed in each of the following solutions:
a. Isotonic solution:
b. Hypotonic solution:
c. Hypertonic solution:
Answers
Answer:
Isotonic: there would be no net flow of water, the cell will stay stable
Hypotonic: the cell will fill up with water and burst
Hypertonic: The cell will shrink because it loses water
Explanation:
As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become Or This means they will turn Genes for the type of cell they are becoming, and turn Genes for the type of cell they won't be.
Answers
Answer:
differentiated; on; off
Explanation:
As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become differentiated Or This means they will turn Genes on for the type of cell they are becoming, and turn Genes off for the type of cell they won't be.
Stem cells become specialized cells through the process of differentiation. The stem cells all have identical DNA in them. They become specialized for a particular function (s) through the process of differentiation. During this process, some specific genes are either turned on or off. Cells in which the same genes are expressed become specialized for similar functions and can then come together to form a tissue.
The activity for Enzyme A and Enzyme B are displayed on the graph below. Enzyme A is found in thestomach and Enzyme B is found in the intestinal tract of some animals.
What is the probable pH of the stomach?
F. 1
G. 2
H. 3
J. 4
Answers
Answer:
3
Explanation:
the probable pH of the stomach is around 3
Answer:
H. 3
Explanation:
The probable pH of the stomach is 3.
Where are most mountains on Earth fomed?
Answers
Answer:
asia
Explanation:
Answer:
Mountains are most often formed by movement of the tectonic plates in the Earth's crust. Great mountain ranges like the Himalayas often form along the boundaries of these plates. Tectonic plates move very slowly.
Explanation:
