Question

please ans ques no. 1 this question fast​

Answer 1

Answer:

Given.. Balls=(3white +4red+5black) balls

=12 balls

P(one white and one black) =P(first white and second black) +P( first black and second white)

P= 3/12x5/11+5/12x3/11

P=15/132+15/132

P=30/132

P=5/22

And the question no is 7 ..

Not 1......

.....

Answer 2

Answer:

The two core techniques that enabled birth of modern biotechnology are :

1. Genetic engineering—Techniques to alter the makeup of genetic material (DNA and RNA), by introducing new genes into host organisms and thus change the phenotype of the host organism.

2. Maintenance of sterile (microbial contamination-free) environment in chemical engineering processes to enable growth of only the desired cell in large quantities for the manufacture of biotechnological products like antibiotics, vaccines, enzymes etc.