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Simora [160]
3 years ago
11

DNA encodes the cell's genetic instructions for making proteins. The process of making proteins from DNA is divided into two sta

ges called transcription and translation. Transcription is further divided into three steps called initiation, elongation, and termination. Classify the statements about transcription according to the step in which each occurs.
Biology
1 answer:
Marta_Voda [28]3 years ago
8 0

Answer:

Transcription is the synthesis of RNA from the DNA. It is further divided into three steps:

Initiation: In this step at first, there is binding of RNA polymerase to the group of transcription factors, it binds at the promoter. It is followed by unwinding of DNA double helix, and then the synthesis of RNA starts.

Elongation: The RNA polymerase extends across the DNA template, it adds the base pairs in 5' to 3' direction. In the same step proofreading of RNA is done to eliminate the errors in synthesis.

Termination: In this step RNA polymerase detaches, at certain stop signals, adding of further base pairs is also terminated by RNA polymerase. The newly synthesized transcript of RNA is released.

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For each population description, identify which Hardy-Weinberg assumption is violated?
zavuch27 [327]

Answer:

4. A large and isolated population of squirrels in a relatively stable environment in which no genetic mutations are occurring and mating between males and females is random.

Explanation:

1. A small and isolated population of seals living in a stable environment with no genetic mutations.❌

1. false

Hardy-Weinberg assumption is not violated for a small population as seen in this case.

2. A large population of fish where females mate with males based on size.❌

false

Hardy-Weinberg assumption is not violated for an instance where mating is not random as seen in this scenario.

3. A population of birds with no genetic mutations that often mate with members of neighboring bird populations.❌

False

Hardy-Weinberg assumption is not violated for where gene flow is seen among population in this scenario.

4. A large and isolated population of squirrels in a relatively stable environment in which no genetic mutations are occurring and mating between males and females is random.✔

True

Hardy-Weinberg assumption is violated for in this situation due to large population size.

5. A small population of spiders living in an environment that strongly favors larger individuals.❌

false

Hardy-Weinberg assumption is violated for a small population and natural selection occurring as its obvious in this case.

There are five primary Hardy-Weinberg assumptions:

A. no mutation,

B. random mating,

C. No gene flow,

D. infinite population size,

E. No selection.

If the assumptions are exempted in a gene, the population of that gene might undergo evolution causing a resultant change in the gene's allele frequencies.

5 0
3 years ago
Do the cells beneath the formative phase differ from each other
Valentin [98]
They differ from each other
8 0
3 years ago
Read 2 more answers
Which of the following are functions of lymphoid tissue? A. house and provide a proliferation site for lymphocytes B. house and
Genrish500 [490]

Answer:

The correct answer is option D. A and C.

Explanation:

Lymphoid tissue is the body part that is an essential part of the immune system that provides immune response against different infection or pathogens and protects from these foreign bodies. These tissues are present in all over the body that includes spleen, adenoids, tonsils, lymph nodes and other parts.

Lymphoid tissues or organs are the sites of the proliferation of the macrophages and lymphocytes. These structures also assist in furnishing surveillance points for lymphocytes and macrophages.  

Thus, the correct answer is option D. A and C.

6 0
3 years ago
About Space! Can I please get help, no links or I'll ban your account. What is the life cycle of a star in order. Look at the pi
Delvig [45]

1. Nebula

2. Protostar

3. Low-mass star

4. High-mass star

5. Red Giant Stars

6. White Dwarf Stage

7. Black Dwarf Stage

8. Supernova

9. Neutron Star

10. Black hole

Hope this helps.

7 0
3 years ago
If you were an Astronaut in the middle of the near side of the moon during a full moon, how would the ground around you look? Ho
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  However, It would be bright all around. All though the Apollo astronauts that went there, it wasn't as bright as say a desert on Earth but more like an asphalt parking lot.
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