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serious [3.7K]
3 years ago
5

In normal skeletal muscle tissue, binding of acetylcholine to its receptors at the neuromuscular junction results in:

Biology
1 answer:
BARSIC [14]3 years ago
3 0
<span>Answer: Opening of Na+ and K+ Explanation: Acetycholine binding opens Na+ and K+ ion channels in the receptors that allow simultaneous passage of Naâş into the muscle fiber and Kâş out of the muscle fiber. More Naâş ions enter than Kâş ions exit, which produces a local change in the membrane potential called the end plate potential. Binding of acetycholine to receptor proteins opens Na+ and K+ channels resulting in jump in resting membrane potential(RMP) from -90mV to +75mV forming an end-plate potential (EPP).</span>
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Genotypes usually involve some combination of dominant and recessive alleles. What is the most common inheritance pattern?​
mylen [45]

Answer:

The correct answer is option D) six dominant and two recessive.

Explanation:

The most common genetic inheritance pattern involves cross between heterozygous recessive parents which means it has one allele of each character in every parent (suppose Tt).

Cross between these parents provide these offspring; TT, Tt, Tt, and tt which exhibit 3:1 ration which can also be mention as 6:2 which means 6 out of the 8 has dominant (homozygous or heterozygous) and 2 out of 8 offsprings are recessive alleles.

Thus, the correct answer is option D) six dominant and two recessive.

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3 years ago
Which structure is continuous with the very delicate corneal epithelium that covers the surface of the cornea? which structure i
DENIUS [597]
Ocular Conjunctiva  - It is a part of the conjunctiva, which is a clear membrane that covers the eye's surface. It is also called as the bulbar conjunctiva. The main function of the Ocular Conjunctiva is to protect the eye from germs and infections.
8 0
3 years ago
Dna replication in eukaryotes occurs relatively quickly because
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The replication of chromosomes by eukaryotes occurs in a relatively short period of time because each chromosome contains multiple replicons. Prokaryotic such as bacteria often contain only one chromosome with one origin at which two replication forks assemble and move in opposite directions.
8 0
3 years ago
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An example of a properly functioning homeostatic control system is seen when
ANEK [815]

Answer:

the kidneys excrete salt into the urine when dietary salt levels rise

Explanation:

Hyponatremia is an electrolyte imbalance, with a low level of sodium in the blood. The normal value of sodium in adults is 136 to 145 mEq / L. Sodium is an element, or electrolyte of the blood. Sodium chloride is commonly known as table salt.

Certain conditions can cause decreased sodium in the blood. Specific causes of hyponatremia include:

Water poisoning (water replacement without electrolyte replacement).

Problems in the kidneys, heart or liver.

Medications: such as diuretics, Heparin, certain chemotherapeutics (Aminoglutethimide, Cyclophosphamide and Vincristine).

Conditions related to steroids, hormones or metabolic defects, such as a syndrome that alters the secretion of antidiuretic hormone (SSIHA). If this occurs, you urinate frequently and the kidneys excrete too much sodium. This can result from many conditions, including certain types of lung cancer.

6 0
3 years ago
Science is best described as a.. a.) set of facts b.) way of knowing c.)collection of beliefs d.) list of rules
alexdok [17]

The correct way to describe science is that is referred as a way of knowing.

The reason for this definition is that, it is responsibility of ancient to help humans to gain knowledge and understands in response to what they want to search so as to know more about something.

It organizes and builds knowledge for predictions and explanation on the universe.

Science can be divided into natural science, social science which include economics, and formal science which include mathematics.

3 0
3 years ago
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