What are the two main processes upon which ecosystems depend?
A) speciation and evolution
B) nutrient recycling and energy flow
C) decomposition and nutrient recycling
D) sunlight and photosynthesis
B
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In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls
flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white. What is the genotype of the parents? What will be an ideal response?
A cellular structure found in plant but not animal cells is the:a
chloroplast. b. ribosome. c. endoplasmic reticulum. d. microtubule. e. microfilament.
Which of the following organisms should be tested with cefinase to rule out its ability to produce beta-lactamse?
A) Micrococcus luteus B) Streptococcus pyogenes C) Moraxella catarrhalis D) Staphylococcus aureus
The genetic code:
A) is a list of all the possible proteins that can be made. B) shows the connection between nucleotide triplets and the amino acids they code for. C) tells us how RNA is assembled on a DNA template. D) shows the connection between nucleotide triplets in DNA and their corresponding codons in RNA. E) describes the mechanics of translation.