In normal differentiated somatic cells, telomerase
A) adds material to the ends of chromosomes with each cell division.
B) is not expressed and telomere tips erode with each division.
C) removes telomere tips with each division.
D) repairs double strand breaks in DNA.
B) is not expressed and telomere tips erode with each division.
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When plasmogamy occurs in two compatible mating types of fungi, a dikaryotic cell is formed in the hyphae. For some groups of fungi, only one or a few cells are dikaryotic
In other groups of fungi, a majority of the cells that make up the fungal hyphae are dikaryotic. What might be an advantage of having dikaryotic hyphae? A. Dikaryotic hyphae have more nuclei and there can be higher rates of transcription and translation and more digestive enzymes made by each cell. B. Dikaryotic hyphae are able to divide more rapidly than hyphae with only one nucleus. C. Karyogamy can occur in more than one cell and more fruiting bodes can be produced, increasing the number of spores produced through sexual recombination. D. Karyogamy can occur more rapidly when a dikaryotic hypha finds an alternate mating type.
What is the minimum number of clones that should be in this mouse genomic library to have a 95% chance that it contains the entire genome?
The mouse genome consists of 2,700 Mb. A genomic library is constructed using BAC vectors and overlapping fragments of the mouse genome. The average size of the mouse DNA inserts is 200 kb. A) 2,700 B) 13,500 C) 54,000 D) 135,000
One way to generate acetyl-CoA is to convert pyruvate into acetyl-CoA by stripping off a CO2 molecule. The removal of CO2 is referred to as what type of reaction?
A. Glycolytic B. Carboxylation C. Acetylation D. Decarboxylation
Choose the letter of the best match from the following:A. hypocotylB. endospermC. scutellumD. radicleE. epicotylNutritive tissue within angiosperm seeds.
Fill in the blank(s) with the appropriate word(s).