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Romashka [77]
3 years ago
12

A biochemist isolate, purifies, and combines in a test tube a variety of molecules needed for dna replication. when she adds som

e dna to the mixture, replication occurs, but each dna molecules consists of a normal strand paired with numberous segments of dna a few hundred nucleotides long. what has she probably left out of the mixture?
Biology
1 answer:
77julia77 [94]3 years ago
7 0
The answer is <span>DNA Ligase.</span>
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Ten points help me out it's due in an hour
hoa [83]

1A):  Fats are  =====>     <u>Solid at Room temperature</u>

1B):   Oils  are    =====>  Liquid at Room Temperature


2A):  Lipids ====> <u>Are a group of organic compounds, that include fats, oils, waxes and related substances. Lipids are composed of carbon and hydrogen, and oxygen, but there is no definite ratio of hydrogen to oxygen atoms lipids as there is in  carbohydrates. Simple lipids, which are the most  common type, are made up of three fatty acids molecules, and glycerol molecule.</u>


2B):  Carbohydrates  =====> <u>Are organic compounds composed of carbon, and hydrogen, and oxygen. The proportion of hydrogen atoms to oxygen atoms in carbohydrates is the same as in water; Two hydrogens to one oxygen. There are three basic types of carbohydrates. Monosaccharides, disaccharides, and polysaccharides.</u>


3): <u>A positive control ===> s</u><u>hould give the desired outcome of the experiment, provided that all the reagents and equipment are functioning properly. For example, if your experiment results in the ability of bacteria to grow on a petri plate containing antibiotic, your positive control will be bacteria that are known to carry the appropriate drug resistance marker. Even if none of your experimental bacteria grow, as long as there is growth of the positive control you know that growth was possible.  </u>

3B):   A Positive Control  =====> <u>should be designed to not give the desired outcome of the experiment. In the example above, bacteria which do not carry a drug resistance marker should not be able to grow on a petri plate containing antibiotic. If growth is observed, it is a red flag that something is wrong with the experiment.</u>




Hope that helps!!!                                  : )






6 0
3 years ago
_________ Volcances are ones that frequently erupt​
Irina18 [472]

Answer:

stratovolcanoes are one that frequently erupt

5 0
4 years ago
Read 2 more answers
Which of the following genotypes would be
Studentka2010 [4]

Answer:

dd, both parents would also be (dd) as well.

Explanation:

6 0
3 years ago
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In which of the following phrases of the moon are you able to see the most surface area?
Sergeu [11.5K]

The correct answer in this case is the waxing gibbous, because waxing means growing, and gibbous is the final stage before a complete full moon.

3 0
4 years ago
Fats and steroids are examples of which macromolecules​
abruzzese [7]

Answer:

Types of biological macromolecules

Biological macromolecule Building blocks Examples

Lipids Fatty acids and glycerol Fats, phospholipids, waxes, oils, grease, steroids

Proteins Amino acids Keratin (found in hair and nails), hormones, enzymes, antibodies

Nucleic acids Nucleotides DNA, RNA

Explanation:

6 0
4 years ago
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