Mendel's law of independent assortment dictates than an Aa Bb dihybrid would make equal numbers of four gamete types. What are these four gamete types?
A) A; a; B; b
B) AA; BB; aa; bb
C) A B; A b; a B; a b
D) AA BB; AA bb; Aa Bb; aa BB
C) A B; A b; a B; a b
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Capillary walls consist of
a. stratified squamous epithelium. b. simple squamous epithelium. c. simple cuboidal epithelium. d. stratified cuboidal epithelium. e. simple columnar epithelium
Describe the evidence for the existence of a flowering promoter and also for the existence of a flowering inhibitor. What will be an ideal response?
Which of the following were used in studies to test and support the hypothesis that high pressure forces phloem sap to flow?
a. radiolabelled sugars b. radiolabelled hormones c. aphids d. vacuum chambers
Next-generation sequencing takes advantage of the concept of sequencing-by-synthesis. What is sequence-by-synthesis?
A) The use of firefly luciferase and pyrophosphate to report on nucleotide incorporation. B) The use of a multiwell system and microfluidics to detect incorporated nucleotides at each base. C) The use of a single polymerase in a nanopore that reports on a single molecule of synthesized DNA. D) The use of PCR to incorporate ddNTPs, followed by electrophoresis.