What is the main difference between leukemias and lymphomas?
A) In leukemias, malignant cells are mainly located in the tissues.
B) Lymphomas are present mainly in peripheral blood.
C) Lymphomas arise due to a lack of response to stimulating antigens.
D) Lymphomas arise mainly in lymph nodes, the spleen, or other lymphoid tissue.
Ans: D) Lymphomas arise mainly in lymph nodes, the spleen, or other lymphoid tissue.
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As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground
Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. About how many meters above the ground is the nail? A) 0.5 B) 1.5 C) 3.0 D) 15.0 E) 28.5
Cytoplasmic organelles composed of two subunits, one large and one small, which are the sites of polypeptide synthesis are called ____________________
Fill in the blank(s) with correct word
Alleles that differ by as little as a single nucleotide can be distinguished by synthetic probes known as ________
Fill in the blank(s) with correct word
Which of these molecules is typically double-stranded?
A. mRNA B. rRNA C. tRNA D. DNA