Biology, 07.03.2020 03:36 mansnothot316
In 10th century Norway, Eric the Red and his followers were banished for murders and general rowdiness. This small group, which had a higher representation of an allele that contributes to red-hair color than the rest of the population of Norway, sailed west and established a colony on Iceland. Within several centuries, the colony had a population of several thousand, the majority of whom were red-heads. How would this BEST be explained?
Answers: 3
Biology, 22.06.2019 00:00
Mouse liver cells were homogenized and the homogenate subjected to equilibrium density-gradient centrifugation with sucrose gradients. fractions obtained from these gradients were assayed for marker molecules (i.e., molecules that are limited to specific organelles). the results of these assays are shown in the figure. the marker molecules have the following functions: cytochrome oxidase is an enzyme involved in the process by which atp is formed in the complete aerobic degradation of glucose or fatty acids; ribosomal rna forms part of the protein-synthesizing ribosomes; catalase catalyzes decomposition of hydrogen peroxide; acid phosphatase hydrolysis monophosphoric esters at acid ph; cytidylyltransferase is involved in phospholipid biosynthesis; and amino acid permease aids in transport of amino acids across membranes. a) name the marker molecule and give the number of the fraction that is most enriched for each of the following cell components: lysosomes; peroxisomes; mitochondria; plasma membrane; rough endoplasmic reticulum; smooth endoplasmic reticulum.
Answers: 3
Biology, 22.06.2019 00:40
As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles
Answers: 2
Biology, 22.06.2019 01:00
How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain
Answers: 1
Biology, 22.06.2019 01:30
As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases
Answers: 2
In 10th century Norway, Eric the Red and his followers were banished for murders and general rowdine...
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