Define and explain the use of antisense technology in plant biotechnology
What will be an ideal response?
Antisense technology blocks the mRNA of a gene and, therefore, blocks translation.
An example of this is blocking the gene for polygalacturnase (PG), an enzyme involved in the
normal decay of plants. By using antisense technology, PG gene expression is partially blocked,
thereby slowing the rotting process of the fruit. Antisense technology usually does not result in
complete blockage of a gene product, but it can substantially block it.
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Bryophytes are a:
A. monophyletic group of land plants. B. paraphyletic group of land plants. C. polyphyletic group of land plants. D. unrelated group of land plants. E. group of photosynthetic algae who are the ancestors of land plants.
Dormant, thick-walled resting cells of cyanobacteria that are resistant to desiccation are called ________.
A. hormogonia B. thylakoids C. baeocytes D. akinetes
Vitamin B3 is a precursor of ____
a. NADH b. ATP c. DNA d. RNA e. FADH
Geologists have evidence that over the past 1.5 billion years
A) Earth's landmasses have remained in the same shape and positions as they have in the current time. B) Earth's landmasses have joined into a single continent and split back apart again on three occasions. C) Earth's landmasses have changed positions extensively but have remained separate and in the same shapes. D) Earth's landmasses have changed shape and have been entirely submerged in water on three occasions.