Answer:
In an ecosystem when plants don't exist or dies out all animals while die because herbivorous depends on plants when plants die they also die making the carnivores also die due to lack of food
Answer:
3'-GCTATAACTCGATTCGAA-5'
Explanation:
The DNA is a macromolecule formed by two strands of polynucleotides forming a double helix.
These chains are composed of monomers called nucleotides, there are 4 different types in DNA, called nitrogenous bases: two purines, guanine (G) and adenine (A) and two pyrimidines, thymine (T) and cytosine (C). They are joined by covalent bonds in each chain.
These bases are complementary: G with C, and A with T between the two strands by hydrogen bonds making the double-stranded DNA molecule.
A sequence 5'-CGAT-3' is equivalent to a sequence written 3'-ATCG-5' , because the 5' and 3' notation defines the direction of reading. If one strand is noted 5' to 3', then the complementary strand will be from 3' to 5' in the same sense.
So, all we need to do is write the complementary bases from the 3' end to 5':
5'-CGATATTGAGCTAAGCTT-3'
3'-GCTATAACTCGATTCGAA-5' (answer)
Answer: Low, High, Lac repressor
Explanation:
The expression of the lac structural genes is low when lactose is absent from the culture medium and is high when lactose is added, because lactose binds to the lac repressor and inactivates it.
When Lactose is present the lac genes is expressed because the substrate lactose act as inducer and binds to the lac repressor and inactivate it. So the gene is expressed.
But in the absence of lactose, the lac repressor binds the DNA and prevent the expression of the lac genes
