The question is kind of confusing but from what I understand; missense mutations happen when an amino acid is changed to another amino acid. To find out more specifically, look at a codon chart trust me it helps so much lol (just search codon chart and go to images). missense mutations can also cause a premature stop codon so look for a changed amino acid and a stop codon when u look at the codon chart. maybe if u see the different pairs you can get a more specific answer. I hope this helps :)
What is silk thread?
Sickle cell anemia in the United States disproportionately affects African Americans; 1 in 700 African Americans are affected by sickle cell anemia, while only 1 in 160,000 Americans of European descent are affected. The absolute risk of a newborn African American child having sickle cell anemia is ____________%, and the relative risk compared to a newborn European American child is ____________-fold
Answer:
0.0014; 0.0044
Explanation:
The absolute risk (AR) of a disease refers to the risk of developing the disease over a given time period. In this case, the absolute risk of the newborn African American child having sickle cell anemia is equal to 1 individual with the disease over 700 individuals >> AR = 1 / 700 = 0.0014. Moreover, the Relative Risk (RR) is calculated by comparing the likelihood of the absolute risk occurring between two distinct groups. In this case, the relative risk for the newborn African American having sickle cell anemia compared to a newborn European American child can be calculated by dividing the absolute risk of the newborn European American child with the measured absolute risk of the newborn African American child >> RR = 0.0000625 / 0.0014 = 0.0044.
The protein calcineurin binds to the protein calmodulin with an association rate of 8.9 × 103 M-1s-1 and an overall dissociation constant, Kd, of 10 nM. The dissociation rate kd is:_____. Please explain step by step.
A. 8.9 × 10^3 M-1s-1
B. 8.9 × 10^2 s-1
C. 1.1 × 10-10 s-1
D. 8.9 × 10-5 s-1
Answer:
D
Explanation:
From the information given:
Association rate [tex]K_a[/tex] = [tex]8.9 \times 10^3 M^{-1}s^{-1}[/tex]
dissociation constant [tex]K_D[/tex] = 10 nM
dissociation rate [tex]K_d[/tex] = ???
Using the following relation from equilibrium dissociation constant to determine the dissociation rate, we have:
[tex]K_D =\dfrac{ K_d}{K_a}[/tex]
[tex]K_d = K_D \times K_a[/tex]
[tex]K_d =(10*10^{-9} \ M) \times (8.9*10^3 \ M^{-1}{s^{-1})[/tex]
[tex]\mathbf{K_d =8.9*10^{-5} \ {s^{-1}}}[/tex]
A penicillin reaction is a life-threatening event. In those who are allergic to penicillin, the drug acts as a __________ that binds to blood proteins, causing a strong immune response.
Answer:
A penicillin reaction is a life-threatening event. In those who are allergic to penicillin, the drug acts as a hapten that binds to blood proteins, causing a strong immune response.
Explanation:
Low molecular weight chemicals can bind to antibodies, but cannot activate B lymphocytes by themselves (they are not immunogenic). To generate specific antibodies to these small chemicals, immunologists typically bind them to macromolecules prior to immunization. In these cases, the chemical is called a hapten. Penicillin G is a typical hapten that tends to covalently bind to lysine residues both in solution and in protein-bound cells. Penicillin is a drug that behaves as a hapten, since the beta-lactam ring under physiological conditions opens and reacts with the lysine residues of proteins, forming a complex that is the main antigenic determinant of penicillin and other beta-lactams and is capable of to stimulate responses mediated by antibodies or by T cells.
What type of lipid is shown?
saturated
unsaturated
phospholipid
triglyceride
Answer:
unsaturated is the correct answer
Which of the following is a risk associated with making our lifestyle more convenient?
Increased use of technology
O Decrease in environmental hazards
Increased use of science
Increased pollution in the air, water, soil
Answer:
Increased pollution in the air, water, soil.
You are a well-trained Cytogenetic Technologist. You work as a Genetic Counselor at a medical institution. You are meeting a nervous couple in your office, who recently found out that they are going to be first-time parents. They have come to you to discuss the chances of having a child with birth defect or genetic disorder. To ease their nerves, you greet them with a smile in your white coat, guide them to their seats, and slowly go through the options of prenatal tests available for them.
KARTOTYPE TEST METHODS
First you introduce to the parents the importance of karyotype test, by describing its domy to detect two broad categories of abnormalities in chromosomes, (1)_____and (2)_____. You provide a few examples of genetic disorders that can be caused by chromosomal abnormalities, such as (3)____and (4)____. Some parents would like to know what is the main cause of these genetic disorders. Without going into too much detail, you explain to them that chromosomal abnormalities are usually caused by (5)____in meiosis I and melosis II, when the homologous chromosomes or sister chromatids fail to separate during meiotic cell division
After the parents have decided to conduct a fetal karyotype test, you collect a small sample of chorion cells through chorionic villi sampling (CVS). Chorion is a membrane around the embryo that eventually fuses with the amnion. The chorion cells are grown in culture because chromosomes are most visible at (6)___stage of cell division. You use a technique called banding to create distinguishable landmarks on the chromosomes. There are several types of staining techniques you can use for karyotyping, some advanced techniques like FISH (fluorescent in situ hybridization) uses fluorescent probes to add colors onto different DNA sequences on the chromosome. You choose the most common type of staining techniques called G- banding to label the fetus chromosomes with Glemsa dye.
After taking photos of the chromosomes from a microscope, you sort the (7)____pairs of autosomes in the following order, from (8)____to (9)____, and keep the sex chromosomes last. The sorted photographed image of chromosomes is called (10)____. Now, you are ready to examine the karyotype of the fetus.
Answer:
1 monosomy
2 trisomy
3 Down syndrome
4 Turner syndrome
5 non-disjunction
6 metaphase
7 twenty-two
8 largest (chromosome 1)
9 smallest (chromosome 22)
10 karyotype
Explanation:
Non-disjunction during meiosis I or II occur when homologous chromosomes or sister chromatids refuse to separate. This makes the resulting gametes to have too many or too few chromosome numbers in their genomes.
A gamete with too few chromosome number that participates in fertilization with a normal gamete will result in a zygote with abnormally less chromosome number. This situation is referred to as monosomy. Whereas, the fusion of a gamete with too many chromosome number with a normal gamete will result in a zygote with too many chromosome, a situation known as trisomy.
The manifestation of monosomy and trisomy in humans results in Turner and Down syndromes respectively.
Humans have 23 pairs of chromosomes out of which a pair determines maleness or femaleness - the sex chromosome. Other chromosomes are referred to as autosomes. Hence, there are 22 autosome pairs and 1 pair of sex chromosome.
Chromosomes are studied by karyotyping, a process that involves photographing chromosomes at the metaphase stage of the cell cycle, cutting them out, and then arranging them in decreasing order of size.
define cell and atom
Answer:
cell is the structural and functional unit of live.
Atom are the smallest particle of chemical element
Which of the following could be a characteristic of the fossil that is most closely related to humans? S-shaped back bo...
Answer: S-shaped back bo
Explanation: That was the only choice
Answer:
S-shaped back bone
Explanation:
pls mark as brainlists
Provide details about Meiosis.
Explanation:
a type of cell division that results in four daughters cells each with half the numbers of chromosomes of the parent cell , as in the production of gametes and plant spores
what are the difference between DNA and RNA
Answer:
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
why your 21st century sophisticated, how do you explain the role of the plant in the change of the air in the jar
Answer: The gas of Fire constrains the atoms that make up oxygen in the air. Plants release oxygen, and take in carbon dioxide.
Calculate the fractional saturation for hemoglobin when the partial pressure of oxygen is 78 mm Hg. Assume hemoglobin is 50% saturated with oxygen at a partial pressure of 24 mm Hg and that the Hill coefficient is 3.
Answer:
YO2 = 0.98
Explanation:
explain water cycle with the help of diagram
Explanation:
The water cycle is defined as a natural process of constantly recycling the water in the atmosphere. It is also known as the hydrological cycle or the hydrologic cycle. During the process of the water cycle between the earth and the atmosphere, water changes into three states of matter – solid, liquid and gas.hope it helps.stay safe healthy and happy...In steps 1, 2, and 3, you will use a Punnett square to predict
Answer:
I don't get the question.
Explanation:
_____________ is a post-translational modification that occurs in the endoplasmic reticulum or Golgi apparatus to make proteins functional.
Answer:
Lipidation is a post-translational modification that occurs in the endoplasmic reticulum or Golgi apparatus to make proteins functional.
Use the Hide Others button to hide the other structures in the view and observe the routes of the arteries. Select the largest artery, traveling from the heart downward through the torso. What is this artery called
Answer:
The correct answer is - Aorta or descending aorta.
Explanation:
The main artery carries blood from the left ventricle of the heart to the rest of the body and going downwards in the torso is the aorta. The blood leaves the heart through the aortic valve making a cane-shaped curve that allows other major arteries to deliver oxygen-rich blood to the brain, muscles, and other cells. It is known as the largest artery of the human body.
The correct answer is - Aorta or descending aorta.
In algae and plants, photosynthesis happens in the
vacuoles.
mitochondria.
chloroplasts.
chromosomes.
Answer:
chloroplast........................
Answer:
chloroplasts
Explanation:
they contain chlorophyll, a necessary element for photosynthesis
Identify the phases of meiosis I described below
g 33. Humans are bipedal omnivores (we eat both meat and plants, and we walk upright.) What features of the skull reflect this
Answer:
Since Skull is the most complete fossil, the features of the skull that reflects Humans as bipedal omnivores are: The teeth and the foramen magnum.
Explanation:
Humans are bipedal because they can move with their two legs, and they are omnivores because of their ability to eat both meat and plants.
The teeth on a skull are the most important indicators of what an animal eats, and it even shows if an animal is a predator or prey. Humans have different sets and shapes of teeth for different purposes making them an example of heterodont dentition.
The pelvis, knee, and foot bones should be the best to tell us about how an animal moves, however, the foramen magnum which opens for the spinal cord to pass to the brain, could also show whether how the animal moved.
Summarize the steps of Scientific method in one paragraph in your own words.
Answer:
Ask a question or identify a problem.Gather information and form a hypothesis.Create an experiment to test your hypothesis.Collect data and observations by doing/ performing the experiment. Draw a conclusion.Share your findings.If you want as paragraph:
Ask a question or identify a problem. Gather information and form a hypothesis. Create an experiment to test your hypothesis. Collect data and observations by doing/ performing the experiment. Draw a conclusion. Share your findings.
Hope it helps!
Plz mark brainliest!
Note that arteries have a thicker middle layer of tissue than veins. Why is this important and how does it affect the structure of the artery as compared to the vein?
Answer:
The correct answer is - To withstand the high pressure of the outflow of blood from the Heart.
Explanation:
The heart pumps blood to different body parts at high pressure so that it can easily reach all the parts of the body quickly. To able to hold the pressure of the blood pumped at high-pressure arteries need thick walls.
This pressure can be experienced as pulse and which required the walls of arteries and the middle layer or the tunica media to make it much thicker in arteries than in veins. In veins pressure caused by blood is very low pressure that allows them to be thin walls.
Describe the normal process of osteogenesis for compact and spongy bone using the three different types of bone cells and their functions
Answer:
Osteoblasts penetrate the disintegrating cartilage and replace it with spongy bone. This forms a primary ossification center. Ossification continues from this center toward the ends of the bones. After spongy bone is formed in the diaphysis, osteoclasts break down the newly formed bone to open up the medullary cavity.
Describe a metabolic pathway that is inhibited by the action of a pesticide.
Explanation:
The mecanism is termed as feedback inhibition.
Explanation:
In an enzyme catalyzed sequential reaction the end product of that reaction inhibits the activity of the activity of the enzyme catalyzing the ist step This type of regulation is called Feed back regulation or feedback inhibition.
The main function of human body is to maintain the homeostasis of the all the components it contains.When the end product of an ongoing enzyme catalzsed sequential reaction is produced in a high lebel at that time to maintain its own homeostatis that end product inhibits the functioning of the enzyme catalzsing the ist step of that biochemical reaction.
For Example Cytidine tri phosphate inhibits the activity of aspartate transcarbamoylase catalyzing the de novo biosynthesis pathway of pyrimidine metabolism.
does tomato have thick or thin exocarp?
It is observed that constipation is more common among people in the western countries who eat more meat and processed food than us. What could be the reason for this? What should be changed in their diet?
I already know this answer, just checking, it's cuz of roughage
Answer:
yes your answer is correct
Explanation:
Constipation happens when the colon absorbs too much water, this can occur if the muscles in the colon are contracting slowly or poorly, causing the stool to move too slowly and lose more water. As meat need much water to digest, so they leads to problem of constipation. Hence, they should eat sufficient amount of water to cure constipation.
Constipation is common among people in western countries who eat more meat and processed food because there is no enough roughage in their bodies which prevents constipation .Fruits and vegetables like like corn etc contains lot of roughage.
Answer:
hi here is your answer is that Constipation is common among people in western countries who eat more meat and processed food because there is no enough roughage in their bodies which prevents constipation .Fruits and vegetables like like corn etc cpntain lot of roughage
Explanation:
i hope this answer will help you
In a diploid cell, a FISH probe should produce ____________ signals in metaphase FISH and ____________ signals in interphase FISH.
Answer: Four, two
Explanation:
FISH (fluorescence in situ hybridization) is a technique for chromosome mapping with probes that emit fluorescence and allow the visualization, distinction and study of chromosomes of nuclei in metaphase or inferophase. In this way, any type of anomaly such as inversions, aneuploidies, duplications or microdeletions can be seen. To do this, a non-specific DNA staining is performed with DAPI (a fluorophore that marks the nucleus where DNA is present) and the fluorescence will be seen under the microscope.
When cells are in metaphase, their chromosomes are condensed in preparation for cell division. To stop them in metaphase, colchicine is used which is a microtubule depolymerizing agent responsible for separating the sister chromatids of a chromosome, thus preventing the progression of cell division and arresting the cell cycle in metaphase. Here we will see translocations, microdeletions or duplications.
Interphase FISH is used to see decondensed chromatin, which allows higher resolution in detecting small abnormalities. It is mainly used for the detection of aneuploidies or large deletions, duplications or translocations when samples are difficult to grow or are scarce, as in the case of fetal or tumor cells. It is not possible to distinguish between a normal karyotype and a karyotype showing a balanced translocation. In addition, it can be used in the analysis of solid tumors, which divide very infrequently.
During metaphase, the chromosomes are duplicated so there would be two sets of chromosomes (a total of four chromosomes). Then, there would be four signals for each probe. During interphase, the chromosomes are not dupicated. Since it is a diploid organisms, there would be two chromosomes and this will represen two signals for probe.
Choose the appropriate term for each labeled part of
the image.
Label A (ridge core ocean trench)
Label B (ocean trench ridge mantle)
Label C (convection slab pull ridge push)
Label D (convection current slab pull ridge push)
Answer:
A-b -d d-c c-d
Explanation:
Answer:
Label A
Ocean Trench
Label B
Ridge
Label C
Ridge Push
Labe D
Convection Current
Edg 21
Do you think that Neanderthals deserve the sometimes negative public image they have?
Answer:
No.
Explanation:
Neanderthals are portrayed as idiotic animals while in reality they are the beginning of our civilizations. While yes we are far more advanced then they were back then they are still our beginning roots and were smart enough to take the first steps towards advancement causing us to be where we are now :)
Why do you think taking an action or providing measures to prevent disasters ever though you are not experiencing it yet is important?
