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12345 [234]
3 years ago
8

Which of the following is true about RNA?

Biology
1 answer:
kakasveta [241]3 years ago
7 0

Answer:

the right answer is

tRNA bonds with mRNA, bringing in amino acids.

Explanation:

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Chemical bonds
Rasek [7]
<span>Chemical bonds hold atoms together to form compounds. The answer is letter D. Chemical bonds may result through the sharing of electrons as in covalent bonds or from the electrostatic force of attraction between atoms with opposite charges as in ionic bond. There are other bonds that exist to other compounds such as metallic bond and hydrogen bonding. Also, the type of bonding will help us determine what will be the phase of the compound. Just like in liquids, attractive forces are caused by van der Waals bonds.</span>
3 0
3 years ago
_______ bonds form when water is removed to hold
Zigmanuir [339]

Answer:

peptide bond OR dehyrdration synthesis (this is mainly for bonding monomers to polymers..so its peptide bond)

Explanation:

7 0
3 years ago
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Reconstruct the phylogeny that most simply and accurately accounts for the distribution of synapomorphies among ingroup species.
Alina [70]

Complete question:

1). Determine the character states for the following six characters that are present in species OG, 5, 7, 15, 17, 18. Assign the character state found in the outgroup (OG) as a 0 and the alternative derived state a 1; use only two states per character. Example, stem width: 0 = thin, / = thick 1 <em>(Characters and plant species image in the attached files)</em>

2). Score each taxon using the 0 and 1 notation about and add to this matrix <em>(Matrix in the attached files)</em>

4). Reconstruct the phylogeny that most simply and accurately accounts for the distribution of synapomorphies among ingroup species. Given matrices as small and simple as the above example, one can build the tree from the bottom up in a series of sketches, adding clades or branches representing groups with the fewest synapomorphies near the base of the tree and those with the most at the tips. Using the unlabeled phylogeny as a starting point, draw the stepwise construction of a fully resolved phylogeny to account for all of the synapomorphies and include the synapomorphies that identify each clade (the first one, character 2, is included to get you started; this is shared by all members of the ingroup) (<em>Tree in the attached files)</em>

Answer:

  • Characters:
  1. Stem width: Thick-1 // Thin-0
  2. Leaf edge (shape): Pointed-1 // Blunt-0  
  3. Flower base (shape): Narrow-0 // Wide-1
  4. Flower orientation: Downward (Pendant)-1 // Upward (Vertical)-0
  5. Petal color: Purple-1 // Yellow-0
  6. Fruit shape (inset on card, on left): Round-0 // Elongated-1
  • Complete Matrix in the attached files
  • Order in the phylogeny reconstruction: OG --> 7 --> 5 --> 15 --> 17 and 18 (tree + evolutive changes in the attached files)

Explanation:

<em>NOTE: You will find the complete activity in the attached files. </em>

  • The principle of maximum parsimony or maximum simplicity states that among all possible trees within a group of species, the most probable  is the one that requires us to postulate the least number of evolutionary changes. So, to reconstruct a phylogeny we need to choose the tree that requires the less number of changes.
  • To determine the character states for all the six characters, we assigned the number cero to all the characters expressed in the out-group. Thin steam, blunt leaf, narrow flower base, upward flower orientation, yellow petals, and rounded-seeds are all cero states. The other characters are 1.
  • The above information of character state was used to fill in the matrix, specifying which character state belongs to each species according to their traits.
  • The matrix was useful to reconstruct the phylogeny, to identify the autapomorphic trait, and to visualize all the clades.

8 0
3 years ago
Ahmed and Gavin are playing both chess and checkers. The probability of Ahmed winning the chess game is
Vlad1618 [11]

Answer:

i dont understand this question what am i supposed to answer

Explanation:

7 0
3 years ago
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Examine the data table, which shows data for quadrat #18.
chubhunter [2.5K]

Answer:

i got more than

Explanation:

3 0
3 years ago
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