Which of these mechanisms exerts gene control by suppressing transcription in eukaryotes?
a)...
Biology, 05.10.2019 17:20, DivineMemes420
Which of these mechanisms exerts gene control by suppressing transcription in eukaryotes?
a)acetylation of histone proteins b)methylation of dna c)action of activator proteins
Answers: 1
Biology, 22.06.2019 00:00, mya032
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 05:30, carlydays3331
What in scientific term why the salty popcorn causes this thirst
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Biology, 22.06.2019 07:00, ngoziblack
Dna replication or repair occurs in a cell in all of thw following situations except when
Answers: 2
Biology, 22.06.2019 07:50, jadejordan8888
45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.
Answers: 1
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