A new mutation disrupts the expression of Distal-less in one individual of a butterfly species. This individual will likely
_____ develop similar to other butterflies of the same species.
_____ develop deformed limbs.
_____ develop asymmetrical or missing eyespots.
_____ develop deformed antennae.
_____ develop similar to other butterflies of the same species.
__X__ develop deformed limbs.
__X__ develop asymmetrical or missing eyespots.
_____ develop deformed antennae.
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DNA vaccines are bacterial plasmids that contain cloned DNA with an antigen of interest are unlike attenuated vaccines because there is no chance of causing disease
Indicate whether the statement is true or false.
Chemical evolution started on Earth
a. after the appearance of prokaryotic cells. b. long before any cells emerged. c. after the appearance of eukaryotic cells. d. after the appearance of eukaryotic cells but before the appearance of multicellular organisms. e. after the appearance of multicellular organisms.
Topic 2.13 - Microbial Symbioses
What will be an ideal response?
The UV light affects the nucleotide bases of DNA. What can UV light form, and how many neighbouring bases of DNA become covalently linked in this situation?
a. It can form a primer with two bases linked. b. It can form a dimer with one base linked. c. It can form a trimer with three bases linked. d. It can form a dimer with two bases linked.