During transcription, the enzyme RNA polymerase binds to the: MCQ with Answer and Explanation

Explanation:
Insects have an open circulatory system where hemolymph bathes organs directly, not always in vessels. Thus, 3 is incorrect.

Explanation:
The endomembrane system includes ER, Golgi apparatus, lysosomes, vacuoles, and the nuclear envelope—organelles that coordinate membrane flow and protein processing. Mitochondria (and chloroplasts) are not part of this system because they are semi-autonomous, arising from endosymbiosis, and are not connected by vesicle trafficking. Peroxisomes are sometimes considered associated but not part of the ER-derived system.

Explanation:
Genotype is the set of alleles an individual possesses for a particular gene or trait (e.g., TT, Tt, tt). Phenotype is the observable characteristic. Karyotype is the chromosome complement.