Dna replication:
a) requires the cooperation of over a dozen enzymes and other proteins.
b) requires dna polymerase and rna polymerase.
c) is a very fast process that results in numerous errors.
d) is a slow process that results in virtually no errors.

The answer is A) Requires the cooperation of over a dozen enzymes and other proteins.

Explanation:

DNA replication is a very complex process that involves many enzymes such as the helicase, which breaks the hydrogen bonds between the two DNA strands, the SSBs that avoid the strands from coming back together, and that only for the beginning of the process. But there are many more enzymes and molecules helping the replication.

"do a testcross with a homozygous recessive plant."

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).