In some fungi, such as the bread mold Neurospora crassa, the arrangement of spores in the ascus directly reflects the order in which they were produced during meiosis. What is the collection of spores produced by meiosis in Neurospora crassa called?
A) unordered tetrad
B) unordered octad
C) ordered tetrad or ordered octad
D) ordered pentad
C) ordered tetrad or ordered octad
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Which of the following organisms can produce pheromones? Select all correct answers
A. dogs B. orchids C. fish D. ants E. birds
According to the Hardy-Weinberg law, the genotype frequencies of dominant homozygotes, heterozygotes, and recessive homozygotes are represented by p2, q2, and 2pq, respectively, where p is the frequency of the dominant allele and q is the frequency of the recessive allele. Explain how this formula was derived
What will be an ideal response?
The unique double shells of diatoms are made of
A. silica. B. chlorophylls. C. proteins. D. cellulose. E. agar.
A moist layer of cells across which gases are exchanged between animal cells and the external environment is known as a _____________.
A. respiration gradient B. respiratory surface C. respiration protein D. respiratory circulation E. respiration exchange