In what tissue would leukemia originate?
A. Connective
B. Epithelial
C. Red bone marrow
D. Lymphoid
Answer: C
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What formed element in the blood is flattened and circular, lacks a nucleus, mitochondria, and ribosomes, and is red in color because of the presence of hemoglobin?
A) platelet B) erythrocyte C) lymphocyte D) basophil E) eosinophil
The action of the myenteric plexus on digestion is considered part of
a. external influences b. local changes in the digestive tract c. intrinsic nerve plexus d. extrinsic autonomic nerves e. gastrointestinal hormones
If the SA node is nonfunctional, which of the following is most likely to occur?
A. The heart will go into asystole (stop). B. The heart will be desensitized. C. The heart will go into defibrillation. D. Tachycardia will develop. E. Another portion of the heart will become the pacemaker.
Define homozygous and heterozygous
A) Homozygous means homologous chromosomes has the same genes. Heterozygous means homologous chromosomes has different genes. B) Homozygous means homologous chromosomes has different genes. Heterozygous means homologous chromosomes has the same genes. C) Homozygous means that homologous chromosomes carry the same allele of a given gene. Heterozygous means that homologous chromosomes carry different alleles of a given gene. D) Homozygous means that homologous chromosomes carry different alleles of a given gene. Heterozygous means that homologous chromosomes carry the same allele of a given gene. E) Homozygous means that all genes are on the same locus. Heterozygous means that all genes are on different loci.