List the eye structures that light passes through as it travels from outside the body to the retina.
What will be an ideal response?
Cornea ? Aqueous humor ? Pupil ? Lens ? Vitreous humor ? Retina
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How are trypanosome diseases similar to malaria?
A) They are transmitted by insect vectors. B) They cause intermittent fevers. C) They are acute, self-limiting diseases. D) They are all endemic to Africa.
How does the TATA box facilitate eukaryotic transcription?
a. The TATA box joins amino acids to the polypeptide chain. b. It provides an anchor point for basal transcription factors. c. It helps to unwind the DNA template before transcription. d. The TATA box signals the end of a protein gene sequence.
Nucleosomes are best described as:
a. eukaryotic DNA associated with histone proteins. b. prokaryotic DNA associated with nonhistone proteins. c. eukaryotic DNA associated with nonhistone proteins. d. prokaryotic DNA associated with histone proteins. e. eukaryotic DNA associated with scaffolding proteins.
Which of the following does NOT apply to the sex chromosomes X and Y?
a. They are included in an organism's karyotype. b. They look different and carry different genes. c. They are autosomes. d. The nonhomologous pair is thought to have evolved from a homologous pair 250 million years ago.