Biology, 23.07.2019 22:00 ashlynhenderson0323
Students in this class were presented with an unknown lipid. they ran the iodine test on it, producing these results: a. after one minute there was no fading of the color of the iodine, b. after two minutes there was some fading of the color of the iodine c. after 3 minutes there is no additional change in the color d. the saturation was rated at 1.5. what can the students reasonably conclude about this sample? a) it is butter. b) it is crisco. c) it is corn oil. d) it is not a lipid.
Answers: 1
Biology, 22.06.2019 01:30
In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.
Answers: 2
Biology, 22.06.2019 04:30
Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?
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Biology, 22.06.2019 05:50
Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?
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Biology, 22.06.2019 10:40
Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.
Answers: 2
Students in this class were presented with an unknown lipid. they ran the iodine test on it, produci...
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