Answer:
Malaria is a parasite transmitted by mosquitoes that invades the red blood cells, creating fevers, chills & sweating after a couple weeks of being bit.
Explanation:
Precautions you can take to avoid this would be to apply insect repellent on clothing/skin, using a mosquito net & spraying pyrethrin or other insecticides in your room before heading to bed.
The structural arrangement of hydrogen bonds in DNA, where adenine pairs with thymine, and cytosine pairs with guanine, ensures complementary base pairing vital for DNA replication and protein synthesis, maintains the DNA's double helix structure, and allows successful DNA replication during cell division.
The structural arrangement of hydrogen bonds in a double-stranded DNA molecule is significant for various reasons. In this structure, adenine (A) forms hydrogen bonds with thymine (T), and cytosine (C) forms hydrogen bonds with guanine (G). This specific pairing, known as complementary base pairing, is crucial in DNA replication and protein synthesis.
These pairs are also essential in maintaining the double helix structure of DNA. Adenine and thymine are connected by two hydrogen bonds, while cytosine and guanine form three hydrogen bonds. This uniformity in base pair length allows the DNA molecule to maintain a consistent diameter throughout.
The strands of the double helix run in opposite directions, described as antiparallel, which facilitates the successful replication of DNA during cell division. In summary, the hydrogen bonding between specific pairs of bases is a fundamental aspect of the structure and function of DNA.
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Answer:
It is the bell sign, this can be positive due to nerve involvement or due to an ideopathic question.
The bell sign is positive or negative according to different signs perceived by the dental professional or maxillofacial surgeon.
It is the affection of the seventh cranial nerve, that is to say, of the facial nerve.
Explanation:
The facial nerve is a nerve that is responsible for the sensitivity of the face and the motor skills of the muscles of mime, chewing, swallowing and facial expressions.
The pathognomonic signs are:
facial pain, hyperacusis, decreased ocular tearing, diagusia, and when the patient tries to close the eye it deviates upwards and to the side.
In addition to these signs there is a very characteristic one that is anesthesia or hemifacial paralysis, that is, of the middle of the face.
The positive bell sign usually occurs in patients who have serious automobile accidents.
B) Polymerases can only synthesize in the 5' to 3' direction
C) There are only enough dNTP's to support quick replication on one strand, so the other strand lags behind it
D) It is necessary to "slow down" one of the strands so that replication does not occur before cells have a chance to grow
Answer:
B) Polymerases can only synthesize in the 5' to 3' direction
Explanation:
The leading strand's directionality is 3' to 5', so polymerase has no problem with replicating this one. But the lagging strand has the opposite directionality, so the polymerase must work in the opposite direction of the replication fork.In consequence, the replication process undergoes periodic breaks, and the enzymes have to stop and start again while helicase separates both strands, resulting in the polymerization of okazaki fragments.
because the ocean has many more molecules than a pot of water
B
because ocean water has a higher temperature than boiling water
C
because the salt in the ocean causes ocean water to hold on to more heat
D
because molecules of ocean water moves more slowly than those of boiling water
Answer:
A.bevause the ocean had more molecule than a pot of water.
The ocean contains more heat energy than a pot of boiling water because it has many more molecules.
The correct answer is A) because the ocean has many more molecules than a pot of water.
In terms of heat energy, the total amount of energy in a substance is directly proportional to the number of molecules it contains. Therefore, the ocean, which is much larger than a pot of boiling water, contains a significantly higher number of molecules, resulting in more heat energy.
For example, if we compare a small pot of boiling water to the vast ocean, the ocean contains a much larger volume of water, and therefore, a greater number of molecules that contribute to its heat energy.
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Answer:
sugar
Explanation:
plant converts ATP to sugar
was added to 9.9 ml of sterile buffer. After thorough mixing, this
suspension was further diluted by a 1/100 dilution followed by a
1/10 dilution. One-tenth of a ml of this final dilution was plated
on agar plates. After incubation, 52 colonies were present. How
many colony-forming units were present in the total 10 gram sample
of hamburger?
Answer:
5.2 × 10 ⁹ cfus
Explanation:
Using the dilution factors
0.1 ml of the final dilution has 52 colonies
1 ml will have approximately 520 colonies
10 ml of the final sample will have 5200 colonies
at 1 / 100 dilution
1 ml of the sample will have 5200 colonies
100 ml of the sample will have 520000 colonies
1 ml of the 0.1 ml + 9.9 ml has 520000 colonies
10 ml will have 5200000
at the second stage of the dilution
0.1 ml of the slurry had 5200000 colonies
1 ml will have 52000000 colonies
10 ml will have 520000000 colonies
100 ml of the initial sample ( 10 grams + 90 ml ) = 5200000000 colonies =
5.2 × 10 ⁹ cfu