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Romashka [77]
2 years ago
15

In what year did Oxford scientist Robert Brown discover the motion of small particles?

Biology
1 answer:
photoshop1234 [79]2 years ago
6 0
1827 is when Oxford discovers the small particles
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Help <br>Pls <br>:)<br><br><br>thanks <br>:)<br><br><br><br>​
ASHA 777 [7]

Answer:

This is a picture of an aminoacid chain

Explanation:

In an amino acid chain all amino acids ( for example GLY, VAL, or ARG) are linked by peptide bonds. Long chains, also called polymers, of amino acids are called proteins. The enlarged photo is an example of a structure of an amino acid. They have an amine (-NH2) and carboxyl (-COOH) functional group, along with a side chain (R group), specific to each amino acid.

5 0
4 years ago
Explain how the 3’ and the 5’ end of the DNA molecule affects DNA replication.
Fed [463]

Answer:

The DNA is read in the 3' to 5' direction but copied in the 5' to 3' direction

The new strand will be like the  reverse of the template strand

5 0
3 years ago
Cellular respiration harvests the potential energy stored in ______ and uses the energy to make atp.
Oksanka [162]
The potential energy stored in glucose and converts the energy to ATP.
4 0
2 years ago
RNA primers in Okazaki fragments are usually very short, less than 10 nucleotides and sometimes as short at 2 nucleotides in len
bagirrra123 [75]

Answer:

During DNA replication each parental DNA strand serves as a template to a new complementary strand. DNA polymerase is the main enzyme responsible for this process, it catalyzes the addition of nucleotides to form the new DNA chain.  

The complementary nature of the DNA strands, presents a difficulty for DNA replication: DNA polymerase catalyzes the polymerization of DNA only in the 5’ to3’ -in the leading DNA strand. Thus, the opposite DNA strand, the lagging strand, faced an obstacle that is solved by the Okazaki small fragments. The primase enzyme synthesizes small RNA fragments complementary to the lagging DNA strand. These RNA fragments serve as primers for the DNA polymerase. To remove this RNA primers and form a continuous complementary lagging strand, RNase H and DNAse ligase will further cut and join the DNA again.  

DNA polymerase has a higher processivity than primase, if processivity is the average number of nucleotides that it is capable to continuously add to the template strand. Primase dissociates from the template often during DNA replication as it has to constantly add new RNA primers to the strand.  

3 0
4 years ago
In pea plants, the allele for tallness is dominant. What are the possible genotypes of a tall pea plant?
kozerog [31]
TT and Tt are possible genotypes of a tall pea plant as the resulting phenotype of both possible genotypes result in a tall pea plant.
4 0
3 years ago
Read 2 more answers
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