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const2013 [10]
3 years ago
7

Site-directed mutagenesis is a method in biochemistry/ molecular biology that introduces small changes into the DNA sequence of

a gene. This change alters the amino acid sequence of a protein and can alter the function of a protein. What changes are typically inserted into the DNA sequence?
Biology
1 answer:
Rufina [12.5K]3 years ago
5 0

Answer:

Explanation:

Site-directed mutagenesis alters the amino acid sequence by introducing changes in the base sequence of DNA. This is done by either by substituting a single base, multiple bases and inserting or deleting a base.

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Lawrence Kohlberg built on the theories of _____ in his description of the stages of moral development. A. Carol Gilligan B. Jea
Ymorist [56]

Answer:

Lawrence Kohlberg build on the theories of Jean Piaget in his description of the stages of moral development.

Explanation:

The earlier work of Jean Piaget on cognitive development of children was expanded by Lawrence Kohlberg which he described in 6 stages.

1.Stage 1 : Obedience and punishment orientation

This is focused on children to obey rules and avoid from punishment.

2.Stage 2: Orientation through instruments

Individual should have to be in their  best interest

3.Stage 3 : Good boy , nice girl orientation

The children will approve others and acts to avoid disapproval.Emphasis is placed on good and nice behavior.

4.Stage 4:Law and order orientation

The child will accept the rules of the society  as rules are same for everyone.

5.Stage 5: Social contract orientation-

The world holds different opinions,right,and values and each will accept it mutually.

6. Stage 6: Universal ethical principal orientation-

It is based on abstract reasoning where ethical principles are used.

7 0
3 years ago
In 10th grade , Natalie fits the societal ideal of a slender body type . She is most likely a(n) :
vredina [299]

Hello. This question is incomplete. The full question is:

In 10th grade , Natalie fits the societal ideal of a slender body type . She is most likely a(n) :

A) late-maturer.

B) average-maturer.

C) prepubescent.          

D) early-maturer.

Answer:

D) early-maturer.

Explanation:

If Natalie is in 10th grade, it means she is around 15-16 years old. This is an age when the body is being modeled after the molds of an adult body. However, children's characteristics should still be present at this age.

This is not what is happening to Natalie, since at this age she has a body that fits society's standards for a slim body. These standards of beauty in society are aimed at adult bodies, Natalie is not an adult, which shows that she is a person with early maturity.

7 0
3 years ago
Protists are very diverse, and many different classification schemes have been used to define relationships between the protists
andrey2020 [161]

Answer:

D. heterotrophic by ingestion, pseudopods

Explanation:

Protists are generally classified  as all eukaryotic organisms that are not plants, animals or fungi. Example is amoeba, paramecium etc.They may be unicellular or multi cellular in nature.Most exist in colonies.

Their mode of nutrition can be photosynthetic or hetrotrophic. Hetrotrophic  protists   can be divided into  phagotrophs and osmotrops/saprotrophs. The phagotrophs  makes use of the cell body to engulf the food materials as  in amoeba ,carry out extracellular digestion before swallowing it.

Osmotrops absorbed dissolved food from surrounding liquid environments directly. (Some photosynthetic protists can also be heterotrophic.

Amoeboid movement is the mode of locomotion of protists and some  other eukaryotes. It involved the protrusion of cytoplasm, which exert pressure on the cell membrane to form pseudopodia and  the posterioly  evolved  <u>Uropods. </u>

<u />

<u>  </u>

<u>Sol-gel theory has been proposed to expalin this movements, The ectopalsm of amoeba is gelly-like , while the endiplams is less viscpus   and said to be sol. The interchange of the cytoplasmic fluis between the endo-and ecto plasm gives the SOL-GEL propulsion of the protopalms for the amoebic moveemnts .</u>

<u />

<u>The false feet(psuedopodium) drags the amoeba  along in the direction of the flow of the cytoplasm.</u>

Therefore option D is  the right option

4 0
3 years ago
The force ultimately responsible for mass movement
Arisa [49]

Answer:

Gravity is the main force responsible for mass movements. Gravity is a force that acts everywhere on the Earth's surface, pulling everything in a direction toward the center of the Earth. On a flat surface, parallel to the Earth's surface, the force of gravity acts downward

Explanation:

7 0
2 years ago
SOMEONE HELP ME RN PLEASEEE!! what statement best describes evolution???
Tanya [424]
I’m pretty sure it’s the second one
5 0
3 years ago
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