The process of making a complementary DNA (cDNA) from mRNA using reverse transcriptase is called: MCQ with Answer and Explanation

Explanation:
Double fertilization is a unique feature of angiosperms. One male gamete fuses with the egg cell to form the diploid zygote (syngamy), which develops into the embryo. The second male gamete fuses with the diploid secondary nucleus (polar nuclei) of the central cell to form the triploid Primary Endosperm Nucleus (PEN), which develops into the endosperm.

Explanation:
Chloroplasts are present only in the green, photosynthetic parts of plants, not in root cells or non-green tissues. Plant cells typically have a single, large central vacuole occupying most of the volume, whereas animal cells have small, temporary vacuoles. Centrioles are absent in higher plants (angiosperms and gymnosperms) but present in animal cells and some lower plants. Only statement 2 is correct.

Explanation:
Ovaries are the primary female gonads that produce ova (eggs) and secrete sex hormones estrogen and progesterone. The uterus supports embryo development, the fallopian tubes transport eggs, the vagina is the birth canal.