Explain how the leading strand is replicated

The DNA Polymerase synthesizes a leading strand continuously, moving toward the replication fork. only one primer is required to synthesize a leading strand.

Explain the process of gene expression (there are 5 steps in your diagram)

Transcription - creates mRNA, RNA processing, adding/remove parts of RNA, mRNA processing mature mRNA is transfer nucleus/ cytoplasm, Translation - forms polypeptide chain adding amino acids to ribosomes base mRNA, protein folding -chain - 3 dimensional

Describe how the ribosomes build a polypeptide chain

the pSITE holds tRNA that carries the growing polypeptide, the a site holds RNA that carries next amino acid to be added. Esite us the exit site where RNA leaves the ribosome.

Use Hershey and Chase’s experiment to explain how scientists determined whether protein or DNA is the genetic material

The DNA of the T2 phage and not the protein enters an E. Coli cell during infection.

Explain whether changes to an organism’s environment are likely to result in evolutionary change. Provide an example of this.

the ones that survive longer pass their genes down. like during flooding season the small beaked birds died off while the big beaked birds grew because they were able to find food unlike the small beaks.

What are the five conditions for Hardy-Weinberg equilibrium? What does it mean if a population is at Hardy-Weinberg equilibrium?

A large population size, no migration, no mutations, random mating, no natural selection which means the genes and alles are consistent and all criteria is met for it to be a perfect population. so no evolution occurs.

What is a prezygotic barrier? Explain one prezygotic barrier and provide an example.

Prezygotic barriers are from blocks in fertilization that occur during mating time.

Explain allopatric speciation and provide an example.

Gene flow is interrupted when a population is divided into geographically isolated subpopulations. an example, the flightless bird of the Galapagos likely originated from a flying species on the mainland.

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Unit 4 Review Prompt

Bio 101 Unit 4 Chp. - 13,14,19,21,22

Question	Answer
Explain how the leading strand is replicated	The DNA Polymerase synthesizes a leading strand continuously, moving toward the replication fork. only one primer is required to synthesize a leading strand.
Explain the process of gene expression (there are 5 steps in your diagram)	Transcription - creates mRNA, RNA processing, adding/remove parts of RNA, mRNA processing mature mRNA is transfer nucleus/ cytoplasm, Translation - forms polypeptide chain adding amino acids to ribosomes base mRNA, protein folding -chain - 3 dimensional
Describe how the ribosomes build a polypeptide chain	the pSITE holds tRNA that carries the growing polypeptide, the a site holds RNA that carries next amino acid to be added. Esite us the exit site where RNA leaves the ribosome.
Use Hershey and Chase’s experiment to explain how scientists determined whether protein or DNA is the genetic material	The DNA of the T2 phage and not the protein enters an E. Coli cell during infection.
Explain whether changes to an organism’s environment are likely to result in evolutionary change. Provide an example of this.	the ones that survive longer pass their genes down. like during flooding season the small beaked birds died off while the big beaked birds grew because they were able to find food unlike the small beaks.
What are the five conditions for Hardy-Weinberg equilibrium? What does it mean if a population is at Hardy-Weinberg equilibrium?	A large population size, no migration, no mutations, random mating, no natural selection which means the genes and alles are consistent and all criteria is met for it to be a perfect population. so no evolution occurs.
What is a prezygotic barrier? Explain one prezygotic barrier and provide an example.	Prezygotic barriers are from blocks in fertilization that occur during mating time.
Explain allopatric speciation and provide an example.	Gene flow is interrupted when a population is divided into geographically isolated subpopulations. an example, the flightless bird of the Galapagos likely originated from a flying species on the mainland.

Created by: borderspaige

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