Answer:
because bill stacy was sick.
Explanation:
Bill Stacy does not have blue skin even though his mother did because of variations that occur during the segregation of alleles after fertilization.
What do you mean by Variations?Variations may be defined as the altered appearance among individuals in the same population. It is one of the factors that are responsible for maintaining diversity.
Due to variations, offspring do not identical to their parents. These variations have resulted from either erotic reproduction or mutation.
Therefore, Bill Stacy does not have blue skin even though his mother did because of variations that occur during the segregation of alleles after fertilization.
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A. Identify two examples of environmental factors that may impact myeloperoxidase activity. Describe how each of the environmental factors would affect the reaction tare of an enzyme.
B. Predict the how researchers can use myeloperoxidase activity as oxidative stress biomarkers in patients with rheumatoid arthritis. Provide reasoning to justify your prediction.
Answer:
So... MPO is most abundantly expressed in neutrophil granulocytes, and produces hypohalous acids to carry out their antimicrobial activity through oxidative damage during the respiratory burst. It requires heme as a cofactor.
Regarding environmental factors ... obviously the first factor is the presence of an infection and inflammation that cause an increase in the activity and production of MPO. Second, alterations in the MPO gene cause its congenital deficiency which predispose to infections.
Rheumatoid arthritis is an autoimmune and autoinflammatory rheumatoid disease in which significant joint damage is observed. In the joint capsule, inflamed infiltrates are observed composed of neutrophils and lymphocytes. Measurement of MPO levels in the joint cavity could therefore be related to the amount of neutrophils and thus to the extent of the inflammatory damage.
When the respiratory burst occurs, MPO is most abundantly expressed in neutrophil granulocytes, which then create hypohalous acids to carry out their antimicrobial function through oxidative damage.
What is MPO?Regarding environmental causes, the first one is undoubtedly the existence of an infection and inflammation, which elevate MPO activity and production.
Second, changes to the MPO gene result in its congenital deficit, which makes people more susceptible to infections.
Therefore, the amount of neutrophils and, consequently, the severity of the inflammatory response might be connected by the measurement of MPO levels in the joint cavity.
Therefore, When the respiratory burst occurs, MPO is most abundantly expressed in neutrophil granulocytes, which then create hypohalous acids to carry out their antimicrobial function through oxidative damage.
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Biologists refer to the number of chromosomes with an "#n". For example, 1n for one copy of chromosomes and 2n for two copies. How else can this be expressed?
Answer:
haploid/diploid
Explanation:
The number of chromosomes can also be expressed as haploid or diploid, instead of 1n for one copy and 2n for two copies.
The haploid number of chromosomes also refers to a copy of the chromosomes or half of the genome of organisms while the diploid number of chromosomes refers to the double or complete set of chromosomes in the genome of organisms.
So, in other words: n = haploid and 2n - diploid.
Where were the earth's landmasses located? How did they differ from today?
describe the role of insulin in regulating blood sugar levels
Answer:
Insulin helps control blood glucose levels by signaling the liver + muscle fat cells to take glucose from the blood. It then helps the cells to take the glucose to be use for energy, and if the body has sufficient energy, insulin signals the liver to take up glucose and store it as glycogen.
Which of the following statements is true about viruses?
Answer:
What are the statements
Explanation:
two difference between the incisors and canines
Answer:
Incisors: 1. These teeth help in biting the food. 2. They are total 8 in number- four in each jaw. Canines: 1. These teeth help in tearing the food. 2. They are total 4 in number- 2 in each jaw.
Moles and freckles are similar in that they are both:
skin abnormalities
growths
caused by an even distribution of melanin
caused by an uneven distribution of melanin
Answer:
I believe that the answer would be skin abnormalities.
Explanation:
Growths do not apply.
Melanin applies mainly to freckles.
what is the process of heating food to a temperature that kills harmful bacteria
Answer:
Pasteurization
Explanation:
Pasteurization involves heating liquids at high temperatures for short amounts of time. Pasteurization kills harmful microbes in milk without affecting the taste or nutritional value (sterilization= all bacteria are destroyed).
it is called pasteurization
Where should people focus their efforts when improving transportation energy efficiency?
A)
automobile design
B)
bus design
C C)
train design
D)
airplane design
ASAP PLS! I WILL GIVE BRAINLESEST
Why does a vasectomy not affect urine flow?
(FETAL PIG LAB)
Answer:
A vasectomy has no effect on libido, erections, or urination. The amount of semen a man ejaculates will not change after a vasectomy; the only difference is that there are no sperm in the ejaculate. The testicles will also continue to produce testosterone at the same rate.
Explanation:
Vasectomy is the surgical method of male sterilization or permanent contraception. During this process, the male vasa deferentia are cut and sealed to prevent sperm from the urethra and thereby prevent fertilization.
Vasectomy is done in the case of males. Many males are concerned about urination and erection. It is the different duct where urine uses the ureter and sperm uses the gas deferens.
Vasectomy is a method of contraception that has no effect on libido, urination, and erection. Hence the vasectomy does not affect urine flow.
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Asexual reproduction is the when only one parent contributes genetic information creating an identical offspring. true Or false?
Answer:
That is a true statement
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Answer:
c
Explanation: It is younger because it retains most of its potassium. This means that the potassium has not had time to break down yet. In the second rock there is little to none of it's original potassium. Meaning it has existed long enough for most of the potassium to break down.
Will mark brainliest
Answer:
the answer is A and D hope that helped
Watson and Crick made a successful model of DNA based on Rosalind Franklin's X-ray studies. This indicated that DNA was
A.
a triple helix with intertwined bases.
B.
a double helix with bases outside the helix.
C.
a double helix with bases inside the helix.
D.
a single linear molecule of bases held together by sugar-phosphate bonds.
Answer:C. a double helix with bases inside the helix
ExpAnswer: I got it correct
Phenylketonuria (PKU) is a disease that is caused by the mutation of a single gene. The mutation can cause several problems, such as mental ret*rdation, lightly colored hair and skin, and lower IQ.
The disease phenylketonuria is an example of how
A.
a single gene can only affect a single trait.
B.
multiple genes can affect a single trait.
C.
a single gene can affect multiple traits.
D.
all of these
Answer:
C ..A single affect multi traits
Answer:
C ..A single affect multi traits
Explanation:
The reason cows belch methane gas and humans do not is because ?
a. Cows have a two-chambered stomach
b. Cows digest the grass they eat into carbon dioxide
c. Cows ferment their food while it is digesting and nitrous oxide is a by product.
d. Cows ferment their food while it is digesting and methane gas is a by product
https://www.nytimes.com/2020/10/21/climate/beef-cattle-methane.html?smid=url-share
Answer:
D
Explanation:
when we drink soda and we burp it is because of the gases that are created when digestion happens, same for the cow, just with food.
What do these questions mean ? WILL GIVE BRAINLIEST :) pls give an example etc
Answer:
long story short, its asking how their relationships made them lost, so what they are asking is what made them lost as their characteristics.
Explanation:
so yeah
NEED HELP
How do we use ATP in our body?
Explanation:
ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis.
how the exposure to penicillin affects the survival of some bacteria in the population
Answer:
When exposed to penicillin, the frequency of resistant bacteria will increase as those that are resistant survive and reproduce. — The resistant bacteria will survive and they will produce offspring that are resistant
Explanation:
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Explain the difference between sexual reproduction and asexual reproduction. Explain either an advantage or disadvantage for
each.
In asexual reproduction, reproductive organs aren't used but they're used.
advantage of sexual- A lot of genetic variation. since they have DNA of two parents. they can survive more and adapt more.
disadvantage of asexual- diversity is limited. Since the organism only gets the DNA of one parent, they wouldn't be able to really survive if something happened.They would easily be extinct.
Sorry I can't really cone up with better words but I hope you get the idea. it all comes down to natural selection really if you've learned about it. Hope it helped!!!
Explain why males can be carriers for an autosomal disorders but not for an x-lined disorder.
Answer:
In order to be a carrier, the male must be a carrier of the allele without expressing it phenotypically. This can only happen when the inheritance is autosomal because he has a pair of autosomic chromosomes meanwhile he only has one X chromosome. So when the inheritance is X-linked, the allele of the X chromosome will always be phenotypically expressed
An analysis of DNA and RNA sequences can be used to classify organisms. A dendrogram, such as the one shown below, is based on molecular data. It can be used to represent evolutionary relationships within a group of organisms that are hypothesized to have descended from a common ancestor. Brown bear Sun bear Spectacled bear Giant panda Lesser panda Raccoon Dog 100 0 So 60 40 20 Mulions of Years Ago 13 Which statement is best supported by the information in this dendrogram?
Answer: C
Explanation: Lesser pandas are more genetically similar to raccoons that they are to giant pandas.
The statement "Lesser pandas are more genetically similar to raccoons than they are to giant pandas" is not fully supported by the information in the dendrogram presented above.
What does the dendrogram suggest basically ?While it is true that the dendrogram suggests that the giant panda and lesser panda share a more recent common ancestor than either does with the other bears or the raccoon dog, it does not provide evidence to support the claim that the lesser panda is more genetically similar to raccoons than to giant pandas.
The dendrogram provides evidence for the evolutionary relationships among these organisms based on their DNA and RNA sequences. It suggests that these organisms have a common evolutionary history and can be grouped together based on their molecular data.
However, it does not provide information on the degree of genetic similarity between any two specific organisms or groups of organisms.
Therefore, while it is possible that the lesser panda may be more genetically similar to raccoons than to giant pandas, this claim cannot be fully supported by the information in the dendrogram alone.
Further analysis of genetic data and comparison of specific genetic sequences would be necessary to determine the degree of genetic similarity between these organisms.
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how is the structure of a nerve cell specialised to carry out its functions
Answer:
A typical neuron consists of a cell body (soma), dendrites, and a single axon. The soma is usually compact. The axon and dendrites are filaments that extrude from it. Dendrites typically branch profusely and extend a few hundred micrometers from the soma. The axon leaves the soma at a swelling called the axon hillock (the axon hillock also has the greatest density of voltage-dependent sodium channels. This makes it the most easily excited part of the neuron and the spike initiation zone for the axon) and it branches but usually maintains a constant diameter. At the farthest tip of the axon's branches are axon terminals, where the neuron can transmit a signal across the synapse to another cell.
In general, dendrites receive the electrical signal from other neurons, and this signal is transmitted over long distances from the axon.
Like all animal cells, the cell body of every neuron is enclosed by a plasma membrane, a bilayer of lipid molecules with many types of protein structures embedded in it. A lipid bilayer is a powerful electrical insulator, but in neurons, many of the protein structures embedded in the membrane are electrically active. These include ion channels that permit electrically charged ions to flow across the membrane and ion pumps that chemically transport ions from one side of the membrane to the other to generate the action potential that generates the electrical signal. They also have a highly developed synthetic apparatus for the production of neurotransmitters
can someone please help me
WILL MARK YOU BRAINLIEST!!!!
Answer:
The answer should be (b)
Explanation:
Makes the most sense
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If an individual has trisomy 21, what is true of the individual's chromosomes?
There are 21 chromosomes in each body cell.
There is a deletion of chromosome 21.
There are 47 chromosomes in each body cell.
There are 47 chromosomes in half the body cells.
Answer: There are 47 chromosomes in each body cell.
Explanation:
Answer:
there are 47 chromosomes in each body cell
Explanation:
Which countries would be impacted if the world transitioned away from coal?
Answer:
…
Explanation:
Which process accurately describes the transport of substances in the body and production of energy in cells?
The lungs inhale oxygen which is transported to cells by the circulatory system, where cells use it to create energy.
The lungs inhale carbon dioxide which is transported to cells by the circulatory system, where cells use it to create energy.
The heart inhales oxygen which is transported to cells by the respiratory system, where cells use it to create energy.
The heart inhales carbon dioxide which is transported to cells by the respiratory system, where cells use it to create energy.
Answer:
Explanation:
The process that accurately describes the transport of substances in the body and production of energy in cells is- The lungs inhale oxygen, which is transported to cells by the circulatory system, where cells use it to create energy.Therefore, the correct option is A.
What is respiration?The process of respiration involves the exchange of gases between the environment and the body. During inhalation, air enters the lungs, and oxygen is diffused across the lung tissue and into the bloodstream.
The oxygen-rich blood is then pumped by the heart to the cells throughout the body via the circulatory system. In the cells, the oxygen is used in a process called cellular respiration to produce energy in the form of ATP, which powers cellular functions.
Carbon dioxide, a waste product of cellular respiration, is then transported back to the lungs via the circulatory system and exhaled during exhalation.Therefore, the correct option is A.
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The question is incomplete, but most probably the complete question is,
Which process accurately describes the transport of substances in the body and production of energy in cells?
A. The lungs inhale oxygen, which is transported to cells by the circulatory system, where cells use it to create energy.
B. The lungs inhale carbon dioxide, which is transported to cells by the circulatory system, where cells use it to create energy.
C. The heart inhales oxygen, which is transported to cells by the respiratory system, where cells use it to create energy.
D. The heart inhales carbon dioxide, which is transported to cells by the respiratory system, where cells use it to create energy.
The diagrams below represent a human organ system
The major function of the system is to?
(1) provide immunity essential for the survival of each individual in a population (2) provide cells that are necessary for the survival of the species
(3) produce chemical messages that are necessary for nerve cell development (4) control the passage of nutrients into and out of a developing fetus
Answer: (2) provide cells that are necessary for the survival of the species
Explanation:
Your mom and dad each gave you 23. They make you, you and me, me. – What is it?
Answer:
92
Explanation:
23 * 4 = 92
hope this helped
Induced Pluripotent Stem Cells are:
Answer:
I think it's the first one