Which event is most likely to decrease the amount of sunlight that reaches Earth's surface?A) An ice age.
B) An asteroid impact.
C) A catastrophic flood.
D) A prolonged drought.

Answer:

The correct answer is "Transcription occurs only in prokaryotic cells in the cytosol white splicing occurs only in eukaryotic cell in the nucleus".

Explanation:

Prokaryotic cells and eukaryotic cells could be differentiated by the site at which transcription occurs (the synthesis of mRNA from a DNA template). In prokaryotic cells transcription occurs in the cytosol, while in eukaryotic cells transcription occurs in the nucleus. This is easy to remember since prokaryotic cells do not have a nucleus. Also, splicing occurs only in eukaryotic cells in the nucleus. Splicing is the removal of the non coding regions of mRNA (introns), which happens frequently in eukaryotic cells and in prokaryotic cells is a very rare event.

Answer:

Transcription only occur in eukaryotic cells. Transcription and slicing both occur in the nucleus.

Explanation:

Transcription and splicing only occur in eukaryotic cells. Transcription and splicing both occur in the nucleus. Splicing of exons and intron removal is strictly a eukaryotic phenomenon. Prokaryotic genomes are smaller and do not contain introns. Both of these processes occur in the nucleus.

Answer:

The methods by which DNA molecules multiply is known as REPLICATION

Explanation:

                             DNA REPLICATION.-

In all living organism DNA replication occurs. IN replication DNA replicates in this way making its replica or we can say its copy.

During replication, both the strands of DNA are separated first. Then each DNA strand function as the template and makes its own copy to make the full DNA molecule. This is the SEMICONSERVATIVE  mode of replication. In which each DNA molecule has one parent strand and one newly synthesized strand.

The replication start sight is ORIGIN OF REPLICTION( in E.coli ori c). At this location Helicase enzymes help in opening of the DNA.

The enzyme which has very unique function of adding nucleotide on the DNA strand and synthesizing DNA is DNApolymerase.

DNA replication occurs in 3' to 5' direction.

Answer:

polymerase chain reaction

Explanation:

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Answer;

Three ways that scientist can use to avoid bias are;

- Sampling method

- Using blind study

- Repetition

Explanation;

Sampling method involves the studying of a small quantity of a particular aspect in order to form an opinion about the whole population. To avoid bias its important to obtain samples that are appropriate and that would cover the entire participants studied.

-Repetition involves repeating a particular experiment several times in order to ensure that one gets the same results that is ensure accuracy of the results.

-Blind study involves an experiment in which the control and the variable groups are conceal from the participants until after the end of the experiment. It is an important factor to avoid bias in scientific research.

Final answer:

Scientists can minimize bias in scientific investigations through randomization, blind studies, and double-blind studies.

Explanation:

There are three ways that scientists can minimize bias in scientific investigations:

1. Randomization: Scientists can assign participants or samples randomly to different groups or conditions to ensure that each group is similar and reduce bias.
2. Blind studies: Scientists can conduct blind studies where participants or researchers are unaware of the group assignments or the purpose of the study to prevent biased behavior or expectations.
3. Double-blind studies: Scientists can also conduct double-blind studies where both the participants and the researchers are unaware of the group assignments to further avoid bias.

Learn more about Minimizing Bias in Scientific Investigations here:

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