Answer:
e) Invertebrates lack a nervous system
Explanation:
One of the main characteristics of invertebrates is that they don't have a backbone. Backbones belong to the skeletal system. A totally different story is the nervous system which runs inside the backbone. Although the more complex nervous systems appear in vertebrates the simply fact of having eyes like crabs or insects implies having a nervous system that can control them.
Answer:
Codon
Explanation:
mRNA bases are grouped into sets of three, called codons.
Answer:
The correct option is A.
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Answer:
Question contains 6 statements.
1. a substitution of G to U at position +13 in the sense strand
2. a transition at position +12 in the antisense strand
3. a transversion of C in the sense strand of the histidine codon
4. a G nucleotide is inserted after position +1 in the antisense strand
5. a deletion of the A at position +7 in the antisense strand
6. an insertion of A between positions +7 and +8 on the sense stands
Among these only 2 statements are correct.
Below are the correct statements.
Explanation:
2. a transition at position +12 in the antisense strand
5. a deletion of the A at position +7 in the antisense strand
Enzymes are proteins that behave as biological catalysts. They need to have a very specific three-dimensional shape in order for the reaction to occur. If the three-dimensional shape is not formed correctly then the chemical reaction, that is supposed to be promoted by the enzyme, may not occur.
