During PCR, which primer anneals to DNA with its 3' end toward the center of the sequence to be amplified

Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above

Someone me with this: a mineral' is determined by its actomic structure.

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.