BIOLOGY HIGH SCHOOL

A particular gene does NOT constantly churn out the same protein at all times in every cell. This is true for two reasons. First, _____ can allow one gene to produce several different proteins. Second, genes are constantly being turned on and off through the process of _____.

Answers

Answer 1
Answer:

mRNA processing and Gene regulation

Explanation:

  • A particular gene does NOT constantly churn out the same protein at all times in every cell. This is true for two reasons. First, mRNA processing can allow one gene to produce several different proteins. Second, genes are constantly being turned on and off through the process of gene regulation.

The process by which a pre-mRNA undergo various  modification so that it can become a mature RNA is called RNA processing . During RNA processing, splicing is an important step. During splicing, the introns are precisely excised and exons are ligated together. A process of alternative splicing is excised by which more than one mRNA species can be produced from a single pre-mRNA. Thus mRNA processing is the method that allows  a gene to produce different proteins. secondly, the regulation of genes initiate the control of gene products.

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a chart that shows all the possible combinations of alleles that can result from a genetic cross is called a(n) __________

Answers

Hey Leeann479!

The chart that shows all the possible combinations of alleles that can result from a genetic cross is called a Punnett Square! I've attached an example of one to this answer. 

Hope this helps!

(image credit: Wikipedia)

A scientist claims that volcanic eruptions caused dinosaurs to become extinct at this location. Decide whether you agree or disagree with the scientist's claim and then explain your decision.

Answers

Answer:

Dinosaurs are the extinct organisms that belong to the class reptilia. Dinosaurs are the most advanced and bulkier reptiles at the history time and they were overspecialized in their environment.

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If a mouse eats grass, a snake eats the mouse, and an eagle eats the snake, what is the eagle ?a. producer.
b. secondary consumer.
c. primary consumer.
d. tertiary consumer.

Answers

The eagle would not be a producer or a primary consumer. The snake is the secondary consumer and the grass is the producer and the mouse is the primary consumer. So the eagle is the tertiary consumer. D
tertiary :)
grass = producer
mouse = primary
snake = secondary

The phenomenon of fusion is likely to occur when, after a period of geographic isolation, two populations meet?their chromosomes are no longer homologous enough to permit meiosis. the hybrid zone is inhospitable to hybrid survival. an increasing number of viable, fertile hybrids is produced over the course of generations a constant number of viable, fertile hybrids is produced over the course of generations. a decreasing number of viable, fertile hybrids is produced over the course of generations.

Answers

The right answer for the question that is being asked and shown above is that: "a decreasing number of viable, fertile hybrids is produced over the course of generations." The phenomenon of fusion is likely to occur when, after a period of geographic isolation, two populations meet is that a decreasing number of viable, fertile hybrids is produced over the course of generations.

What does the combined genetic information of all members of a particular population form?

Answers

Gene Pool

Gene pool consist of the set of all genes, alleles and the total genetic information that is present in a population of particular species. It will contain the entire genetic diversity of a population. 

Cytokinesis is the division of the cell's_______

Answers

cytokinesis is the division of the cell's cytoplasm.
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