You discover a new species of lily that has 10 chromosomes (2n=10). Genetic testing reveals that it arose from the interbreeding of two other species of lilies, one of which has 12 chromosomes, and one of which has 8 chromosomes. What is the correct term for the new lily species?
A. autopolyploid
B. allopolyploid
C. allodiploid
D. allotetrapoloid
C. allodiploid
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Which of the following is a gastropod?
(a) clam. (b) snail. (c) squid. (d) octopus.
You have learned that having linear DNA has consequences, the major one being that the DNA gets shortened every time it replicates, something that does not happen with the circular DNA found in prokaryotes
What, then, is the advantage of having linear DNA? A. Linear DNA is easier to package than circular DNA. B. Linear DNA is less susceptible to viruses than circular DNA. C. Since mitochondria and chloroplasts have circular DNA, nuclear DNA had to be linear. D. Replication can begin from multiple sites on a linear DNA, allowing for rapid replication and relieving the evolutionary pressure for a streamlined genome. E. All of the answer options are correct.
Protostomes develop through
A. spiral cleavage. B. radial cleavage. C. axial cleavage. D. polar cleavage. E. protocleavage.
Which are deuterostomes?
a. annelids b. echinoderms c. arthropods d. mollusks e. flatworms