Any form of inheritance that does not follow Mendelian patterns and that involves most of the cytoplasm being contributed to the embryo by one of the parents is called ________
Fill in the blank(s) with correct word
extrachromosomal (inheritance)
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When migrating cells move toward a greater concentration of a diffusible chemical, the chemical is called a ________.
Fill in the blank(s) with the appropriate word(s).
Amino acids, the monomer units comprising proteins, contain two functional groups, amino and carboxyl
Indicate whether the statement is true or false.
Watson and Crick used evidence from several studies to determine the structure of DNA. What conclusion were they able to draw from Rosalind Franklin's X-ray diffraction data, specifically?
A) DNA consists of four types of nucleotide bases: A, T, C, and G. B) DNA nucleotides form complementary base pairs. C) Adenine pairs with thymine and cytosine pairs with guanine when they are on opposite DNA strands. D) DNA is a duplex, with two strands forming a double helix. E) The DNA strands are antiparallel, and the strands are held together by hydrogen bonds.
Which cells are unique to vertebrates?
a. pharyngeal cells b. neural crest cells c. notochordal cells d. oral hood cells