The resting cell normally has a net negative charge with respect to the outside of the cell. what is this state called?

Proteins that speed up the rate of chemical reactions in the cell without requiring high temperatures are antibodies.

Ymorist [56]

This is false. The Enzymes are proteins that speed up the rate of chemical reactions in the cell without requiring high temperature. Antibodies are proteins which react to alien or unknown organisms that enter our body like bacteria and viruses.

I hope it helps, Regards.

6 0

3 years ago

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What is a dam please tell

Scrat [10]

A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.

3 0

3 years ago

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What modern process is thought to be similar to the way crust formed before plate tectonics began? The principles of convection

dlinn [17]

The formation of the Hawaiian Islands.

Explanation:

A modern process that is believed to be similar to the way crusts formed before the advent of plate tectonics about million of years ago is the formation of the Hawaiian Islands.

The Hawaiian Island is a series of volcanic Island which forms as result of volcanic activities on the oceanic plate.

Hawaiian Islands forms from a hotspot that supplies the ocean floor with sufficient magma as it rides.
This is similar to the volcanic activities that initially sculpted the surface of the earth.
During the early history of the earth, our very hot and restless planet poured out lava to the surface through which the crust formed.

learn more:

Sea floor spreading brainly.com/question/9912731

#learnwithBrainly

3 0

3 years ago

La polidactilia en la especie humana se debe a un alelo dominante. Entre Francisco y Martha, ambos abuelos de Santiago, uno de e

lesya [120]

Answer:

Abuelo/a con polidactilia heterocigoto, Pp
Abuelo/a normal, pp
Juan normal, pp
Esposa de Juan con polidactilia, PP o Pp
Santiago con polidactilia, Pp

Explanation:

Datos disponibles:

Polidactilia es causada por un alelo dominante, P.
El alelo recesivo p produce numero normal de dedos.
Francisco y Martha → Abuelos → uno de ellos con polidactilia
Juan → Hijo → Normal, pp
Santiago → Nieto → Polidactílico

Uno de los padres, ya sea Francisco o Martha, es polidactílico, lo que implica que ésta persona tiene, por lo menos, un allelo dominante en su genotipo, P- (El simbolo "-" esta representando un alelo dominante o uno recesivo).

Si Juan es normal, entonces su genotipo es pp, lo que significa que recibió un alelo recesivo de su padre y otro de su madre. Es decir que el parental policactílico es heterocigota, de forma que pudo heredarle un alelo recesivo a Juan. El otro parental probablemente sea normal, pp, pudiendo solo heredarle a Juan el alelo recesivo.

Entonces, uno de los padres tiene genotipo Pp (heterocigota) y el otro pp (homocigota recesivo).

Juan es norma, pp.

Santiago, hijo de Juan, es polidactílico, lo que implica que lleva en su genotipo por lo menos un alelo dominante, P. Pero Juan solo pudo heredarle un alelo recesivo, p. Por lo tanto, Santiago es heterocigota para la característica, Pp, y heredó el alelo dominante de su madre, que puede ser homcigota dominante PP o heterocigota Pp.

Supongamos que Francisco es polidactílico y Martha normal.

1º Cruza: Francisco x Martha

Parentales) Pp x pp

Gametas) P p p p

F1) 1/2 = 50% Pp

1/2 = 50% pp → Juan

2º Cruza: Juan x Esposa (opción uno: esposa homocigota dominante)

Parentales) pp x PP

Gametas) p p P P

F2) 4/4 = 100% Pp → Santiago

2º Cruza: Juan x Esposa (opción dos: esposa heterocigota)

Parentales) pp x Pp

Gametas) p p P p

F2) 1/2 = 50% Pp → Santiago

1/2 = 50% pp

6 0

3 years ago

Assume that a base-pair substitution mutation converts a DNA triplet (AAT) to another DNA triplet (AAA). A second mutation now c

vagabundo [1.1K]

Answer:

The answer is "intragenic suppressor".

Explanation:

In this question, the second mutation on the inside of a mutated gene, that leads to both a simple restoration. Its second mutations were its instance of even a mutation suppresser because it contributed to both the evident recovery of its original phenotype from its second mutation within such a gene.

5 0

3 years ago