Which of the following is a unique characteristic of bryophytes not seen in the other plant groups?
A) They exhibit alternation of generations.
B) They produce flowers.
C) The gametophyte is larger than the sporophyte.
D) They produce diploid spores.
C
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Gehring tested the hypothesis that the Pax6 gene acts as a master regulator of eye development by introducing mouse Pax6 genes into Drosophila antennae. What happened, and did it support or refute his hypothesis?
A. A compound eye developed on the antenna; this supports the hypothesis B. A compound eye developed on the head; this supports the hypothesis. C. The antenna developed normally; this falsified the hypothesis. D. The antenna developed where the eye normally would be; this supports the hypothesis. E. The antenna developed where the eye would normally be; this falsified the hypothesis.
Coral are capable of both sexual and asexual reproduction
Indicate whether the statement is true or false
The most shallow soils occur in or on
A) steep slopes. B) native grasslands. C) valleys. D) floodplains.
The piece of RNA below includes the region that codes for the binding site for the initiator tRNA needed in translation
5?-GUUUCCCGUAUACAUGCGUGCCGGGGGC-3? Which amino acid will be on the tRNA that is the first to bind to the A site of the ribosome? (a) methionine (b) arginine (c) cysteine (d) valine