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Leokris [45]
2 years ago
10

I need to know what a mutation is and how it can affect living things.

Biology
1 answer:
anyanavicka [17]2 years ago
3 0

Answer:

A Mutation is when a DNA gene is damaged or changed in  a way that changes the genetic message carried by that gene.

Explanation:Mutations are sometimes good and sometimes bad it can also cause genetic variation which increases the survival of a species

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Is it true that bacteria on a green salad can create a foodborne illlness outbreak.
Rom4ik [11]
The answer for the given question above would be TRUE. It is true that bacteria on a green salad <span>can create a food borne illness outbreak. In fact, based on some researches, bacteria found in salad is more dangerous compared to those found in meat. Hope this answers your question. </span>
3 0
3 years ago
food web represents a community in a rain forest. If people took most of the boa constrictors from this community, which changes
joja [24]

The three correct choices are A, C and D

Boa constrictor is a specie of snake that eats sloths and coatis. Sloth and Coatis are primary consumers that eat strangler figs. If the boa constrictor are removed from the rain forest then the number of sloths and coatis in the forest would increase ans as their number will increase they will start consuming the strangler figs and their amount would decrease.

8 0
3 years ago
Read 2 more answers
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:

<u>Datos disponibles</u>:

  • 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.

<u>1º Cruza</u>: Francisco x Martha

Parentales) Pp    x    pp

Gametas) P    p     p      p

F1) 1/2 = 50% Pp

    1/2 = 50% pp → Juan

<u>2º Cruza</u>: Juan  x Esposa (opción uno: esposa homocigota dominante)

Parentales) pp    x     PP

Gametas)   p    p      P     P

F2) 4/4 = 100% Pp → Santiago

<u>2º Cruza</u>: 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
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What are the 3 parts of nucleotides
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Answer:

DNA and sugar and phosphate

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A condensed visible form of chromatin
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The condensed visible form of chromatin material is called as chromosome.
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