Fungus-like protists are more related to true fungi in the supergroup Opisthokonta than they are to members of any other supergroup.
Answer the following statement true (T) or false (F)
False
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Wheat is a group of grass species. Cultivation originated in the eastern Mediterranean about 10,000 years ago; wheat is now grown on more land area than any other commercial food
If humans did not exist, what would have been the likely evolutionary trajectory of wheat? How could you test this hypothesis? A. Wheat would be a wild grass found only in its native environment. Colonize different environments and measure the establishment success of wheat. B. Wheat would have become a dominant grass on the planet regardless of the presence of humans. Plant wheat in an area and measure its growth rate. C. Wheat would have gone extinct because few species have survived over 10,000 years. Plant wheat and other grasses and watch the resulting ecosystem develop. D. Wheat would have spread beyond its original ecosystem to other hospitable environments. Examine the dispersal and colonization of other grass species with similar characteristics to wheat.
If an individual has 10 gene pairs, how many different gametes can be formed if three of the gene pairs are homozygous and the remaining seven gene pairs are heterozygous?
A) 49 B) 100 C) 128 D) 1024 E) 131,072
In Drosophila melanogaster there is a sex-linked gene for eye color that is found only on the X
chromosome. The allele for red eye color (Xw+) is dominant over the allele for white eye color (Xw). You examine a vial of 100 flies that are all offspring from a single genetic cross. You find both redeyed females and white-eyed females as well as both red-eyed males and white-eyed males. The genotypes of the parents were
a. Xw+Xw+; XwY. b. Xw+Xw; XwY. c. XwXw; Xw+Y. d. Xw+Xw; Xw+Y. e. XwXw; XwY.
What is the purpose of the lac operon, and under what circumstances is it activated? Describe the structure of the lac operon, including the repressor protein, structural genes, and regulatory regions of the operon
What is the role of catabolite repression in the lac operon?