RNA processing involves the addition of to the ends of the RNA transcript.
extra nucleotides
untranslated regions
a coding segment
extra amino acids
exons

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from