The distribution of cytoplasm to daughter cells is accomplished during
A) mitosis
B) meiosis
C) cytokinesis
D) karyokinesis
Answer: C) cytokinesis
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Dinoflagellates _____
A) possess two flagella B) are all autotrophic C) have walls that are usually composed of silica plates D) lack mitochondria E) include species that cause malaria
What is the p value from this test? (Pick the most accurate choice.)
In Drosophila, singed bristles (sn) and carnation eyes (car) are both caused by recessive X-linked alleles. The wild-type alleles (sn+ and car+) are responsible for straight bristles and red eyes, respectively. A sn car female is mated to a sn+car+ male and the F1 progeny are interbred. The F2 are distributed as follows:
A) p> 0.5
B) 0.1
D) p< 0.05
E) p< 0.01
The offspring of two heterozygous gray-bodied, normal-winged flies should be 50% gray-bodied/normal wings
(BbRr) and 50% black-bodied/vestigial wings (bbrr) because these alleles are linked. Suppose a small number, say 15%, of the offspring are instead black-bodied with normal wings. This is most likely the result of: a. crossing-over. b. incomplete dominance. c. codominance. d. an error in meiosis.
e. mutationWhich association of structure and function is incorrect?
A. amnion - blood vessels B. chorion - gas exchange C. allantois - waste storage D. yolk sac - food storage