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marishachu [46]
3 years ago
11

At one time, Chondrichthyes were thought to have split off from other vertebrates before the evolution of bone. Now we have conc

luded that the Chondrichthyes split off after the evolution of bone had started. This change demonstrates ________. A. as new evidence emerges, scientists revise their hypotheses B. scientists develop hypotheses and only accept data that confirm their hypotheses C. revisions of hypotheses take many years D. scientists accept the simplest hypotheses
Biology
1 answer:
Kryger [21]3 years ago
5 0

Answer:

Option-A

Explanation:

Chondricythes is a group of fish which can be characterized by its jawbones, presence of cartilage, and paired fins.

The natural events and phenomenon can be explained by a scientific method which begins with asking a question, background research and then predicting a statement which explains the natural event called a hypothesis.  A hypothesis must be supported by the evidence.

In the given question, the hypothesis explaining the evolution of the Chondricythes changed with time which shows that the hypothesis can be revised with the advancement in technology and the production of new evidence which could either favour or do not favour.

Thus, Option-A is correct.

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Answer:

It has incomparable advantages over other gene editing tools.

Explanation:

For example, the CRISPR-Cas9 system has more target sites than ZFNs and TALENs, and Cas9 has many variants that can be used in a variety of studies. Moreover, the system is extremely easy to use and can be executed in almost any laboratory.

The most important advantages of CRISPR/Cas9 over other genome editing technologies is its simplicity and efficiency. Since it can be applied directly in embryo, CRISPR/Cas9 reduces the time required to modify target genes compared to gene targeting technologies based on the use of embryonic stem (ES) cells.

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3 years ago
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Which statement correctly compares the use of bar graphs versus Circle graphs
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Stabilize the ________ with two boards that extend from the upper thigh to the bottom of the foot.
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Where would the leucine side chain most likely be found in a protein dissolved in water?
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Burried in protein

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Leucine have a branched hydrocarbon side chain. The side chain of leucine is nonpolar and hydrophobic.

If a protein have to face water, proteins fold in such a way during the tertiary structure that the amino acid with polar characteristics tend to remain on outer surface while amino acid with nonpolar characteristics tend to remain in the core of protein.

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