A CERTAIN DNA SMPLE IS FOUND TO HAVE A MAKE UP CONSISTING OF 32 CYTOSINE. CALCULATE THE PERCENRAGES OF THE OTHER NITROGENOUS BASES

You have to use chargaff's rule:

A+G=T+C

A=T

C=G=32%

A+T=100-2x32=36%

A=18%

A=18% T=18%

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.

i hope this : )