The tissue that forms the outer protective covering of the plant body is: MCQ with Answer and Explanation

Explanation:
DNA replication is semi-conservative, meaning each new DNA molecule contains one original parental strand and one newly synthesized strand. Transcription, the synthesis of mRNA from a DNA template, occurs in the nucleus of eukaryotes, not the cytoplasm. Translation, the synthesis of proteins from mRNA, occurs at ribosomes in the cytoplasm or on the rough ER. Thus, statements 1 and 3 are correct.

Explanation:
Vitamin B12 (cyanocobalamin) is a complex vitamin that contains the trace mineral cobalt. Vitamin K is essential for the synthesis of prothrombin and other clotting factors in the liver. Beriberi is caused by a deficiency of Vitamin B1 (thiamine), whereas Vitamin C deficiency causes scurvy. Thus, statements 1 and 2 are correct.

Explanation:
Color blindness is an X-linked recessive disorder. Let X^c be the colorblind allele and X^C be the normal allele. The colorblind man's genotype is X^cY. The carrier woman's genotype is X^CX^c. When they have children, the sons will receive the Y chromosome from the father and one X chromosome from the mother. The mother can pass either X^C (normal vision) or X^c (colorblind) with equal probability. Therefore, there is a 50% chance (1/2) that a son will inherit X^cY and be colorblind.