What are the components of the dna and rna molecule? ?

a) Phosphate group, b) Pentose sugar and c) Nitrogenous base.

Explanation:

Both RNA and DNA are the nucleic acid that are made up of nucleotides which in turn are made up of three major components – a) Phosphate group, b) Pentose sugar and c) Nitrogenous base.  

A nitrogenous bases further is composed of two types of bases –  

a)Purine

b)Pyrimidine  

Purine - Adenine and guanine

Pyrimidine - cytosine, thymine/ uracil (in RNAs only)

These nucleotides are held together in helical arrangement by phosphodiester  bonds.

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the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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