Tlymphocytes are to the as b lymphocytes are to thalamus; bone marrow bone marrow; thymus bone marrow; thalamus thymus; bone marrow

T lymphocytes are to the thymus as B lymphocytes are to the bone marrow. In mammals, lymphocyte development occurs mainly on the central lymphoid glands (i.e. thymus for T cells and bone marrow for B cells). 

ANSWERS: thymus, bone marrow

When you are making a guess you are forming a hypothesis

There are four nitrogenous bases that make up dna. the two pyramidines are thymine and cytosine. the two purines are adenine and guanine. these bases pair in a very specific way. adenine - thymineguanine - cytosine i remember it like this: a tall, good cat.