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2 years ago

A trait is likely to be heritable if _ are more similar in that trait than _.

1 answer:

7 0

a. Dizygotic twins originate from two different eggs, whereas monozygotic twins come the same egg. Monozygotic twins are"identical" because they come from the same egg, and so similar traits between them do not indicate any hereditary tendencies. Dizygotic twins come from two different eggs. Because of this, similarity between them is more likely to be due to a hereditary tendency, because both eggs had to individually inherit the trait.

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An undersupply of the major inhibitory neurotransmitter known as ________ is linked to seizures.

bazaltina [42]

Answer:

Gamma-aminobutyric acid (GABA)

Explanation:

Epileptic seizures are induced by a preponderance of electrical activity within the network of neurons in the brain. Synapsis is the meeting point between the axon of one neuron and the dendrite of another neuron. Electrical signals don't cross through the synapsis, instead, they are conveyed in a chemical form by neurotransmitters.

The neurotransmitters convey messages across the synapsis in a chemical form until they find to the receptor of the dendrite of the receiving neuron. Neurotransmitters can either be excitatory or inhibitory in function i.e. the receiving neuron can either be stimulated to action or inhibited from action. The main excitatory and inhibitory neurotransmitters in the brain are Glutamate and Gamma-aminobutyric acid (GABA) respectively.

There must be a balance between excitation and inhibition of neurons, in order to ascertain the optimal functioning of the brain. Too much Glutamate or too little of GABA can make neurons hyperexcitable and hyperexcitability of neurons makes the brain susceptible to seizures.

8 0

2 years ago

List the functions of proteins in the text area below.

Anuta_ua [19.1K]

Proteins participate at almost all levels of cellular processes among their main functions:

1- Maintenance of oncotic pressure: prot. are macromolecules that hydrate in the plasma and exert a PO retaining water in the vascular medium, all prot. mainly albumin

2- Buffer role: all prot. Plasma acts as a buffer because of their hydrophobic character thus participating in the regulation of acid-base balance

3- Transport function Albumin.Tyroxine binding protein (TBP), transferrin, apoproteins..etc.

4- Enzymes and coenzymes: renin, orosomucoid (coenzymes of LPL)

5- Role in coagulation and fibrinolysis: fibrinogen, thrombin. antithrombin

6- Role in immunity: Ig (lgA JgG.lgM) and complement proteins

7- Role in the allergic: IgE and complement fractions

8- Role in inflammation: α1 antitrypsin, orosomucoides .cerulioplasmin, cytokines, CRP

9- Hormonal role: insulin, glucagon, pituitary stimulins (TSH, FSH, LH)

10- And finally a structural role (such as actin or tubulin that participate in the architecture of the cell, the keratin that makes up the hair);

3 0

2 years ago

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Which two properties fluctuate in a salt marsh?

Romashka [77]

1 - B. Water level and salinity.

2 - B. Oceanic & neritic.

I hope this helps!

3 0

2 years ago

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Which two factors are mostly responsible for recent rapid globalization?

natali 33 [55]

I am going to assume you are working on a test or a quiz. Please provide your answer choices becuase I might have taken the same test or quiz as you recently. (:

8 0

2 years ago

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Examine the cell diagrams shown. Which of the following choices identifies the eukaryotic cell for the correct reason?

Simora [160]

Answer:

Option a

Explanation:

A eukaroytic cell contains more organelles than prokaryotic cells, and it is much bigger and complex.

hope this helps and is right :)

6 0

1 year ago

A trait is likely to be heritable if _____ are more similar in that trait than _____.

A trait is likely to be heritable if _ are more similar in that trait than _.