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Lilit [14]
3 years ago
9

What might make it hard for someone to use a dichotomous key? Make a list of possible reasons.

Biology
2 answers:
k0ka [10]3 years ago
8 0
Somethings that could make it difficult to use the dichotomous key would be if the two organism you were trying to use with it, look exactly alike. For example, you may be looking at two different types of pines with very, very small details that are different. Another thing would be if you couldn't see the small characteristics on your organism<span />
Vlad [161]3 years ago
3 0

The vocabulary is difficult.

The anatomical structures (dorsal, ventral) are not always easy to determine.

Some of the pictures did not show all aspects or key features of the organism.

Some specimens were very similar.

There were lots of questions and it seemed to take a long time to narrow them down.

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Hairpins often form at palindromic sequences in single strands of either RNA or DNA. However, several key features differentiate
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Explanation:

B) The pentose in the hairpin adopts only the C-3\' endo pucker conformation.

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D) The hairpin contains G:C, A:U, and sometimes G:U base pairs.

DNA and RNA are both nucleic acids. Aside the structural difference of DNA being double stranded and RNA being single stranded, in DNA, the nucleotide bases adenine (A) is paired with thymine (T); while cytosine (C) is paired with guanine (G); howerver in RNA, thymine is replaced with uracil.; thus in RNA, the base pairs are - A:U and G:C

RNA however sometimes take on a dynamic structure, called the wobble case pair where guanine and uracil pair - G:U.

The diameter of RNA is 26 Å, while that of DNA is is 20 Å

The ribose in RNA with a helical structure has a C3’ endo conformation.  

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Why doesn't ice wedging occur that much in Antarctica?​
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