__________ in annelids regulate the composition of body fluid. Fill in the blank(s) with the appropriate word(s)
Nephridia
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Somatic hypermutation occurs only in the ________ regions of rearranged heavy and light chains
A) D B) HV C) J D) V
How can your knowledge of neural tube formation provide you with an insight into congenital diseases
that involve incomplete neural tube closure?
What will be an ideal response?The smallest cell structure that would most likely be visible with a standard (not super-resolution) research-grade light microscope is a _____
A) mitochondrion B) microtubule C) ribosome D) microfilament
Which of the following is the most likely explanation for a high rate of crossing-over between two genes?
A. The two genes are far apart on the same chromosome. B. The two genes are both located near the centromere C. The two genes are sex-linked D. The two genes code for the same protein E. The two genes are on different chromosomes