Biology

in eukaryotes, where do general transcription initiation factors bind?promoter
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what is it called when a bunch of genes work together to create characteristics?
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QUESTION: Can you hypothesize different usesfor sedimentary rock in our society?
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What are examples of diseases/disorders that are transmitted through mitochondrial inheritance?
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___________ leave the blood and enter tissues to fight off pathogens and invaders.
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baboons and colobuses are the only old world monkeys included in this phylogenetic tree. what species or group of species is most closely related to the old world monkeys? please select all correct answers.
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what did wents experiments with the gelatin block demonstrate?
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In Avery, MacLeod, and McCarty'\'s experiments, homogenates from heat-killed bacteria were treated with different enzymes, and then the ability of those homogenates to transform bacteria was assayed. Under which condition would transformation not occur?
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waves of muscular contractions that propel food along the gastrointestinal tract are called ___
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what is the tissues that cover external and internal body surfaces?
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a double-stranded dna oligonucleotide and a double-stranded rna oligonucleotide of identical sequence (substituting u for t) are both present in an aqueous solution near neutral ph. apart from the presence of u in rna versus t in dna, how will their helical structures differ?
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Transcription is similar to DNA replication, in that:a. an RNA transcript is synthesized discontinuously, and the pieces are then joined togetherb. it uses the exact enzyme as that used to synthesize RNA primers during DNA replicationc. the newly-synthesized RNA remains paired to the template DNA nucleotided. polymerization occurs only in the 5'-to-3' direction
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why is it logical to observe that wind-pollinated species usually grow in dense stands containing many individuals of the same species?
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The zygote is a single cell and human adult has about 100 trillion cells. Approximately how many divisions should the zygote undergo to form the adult, considering the fact that one cell division leads to the formation of two cells?
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Question 13 (1 point)What would be the pressure if a Jack Hammer exerts 30,000 N of force on the streeasphalt to break open a 0.500 m^2 area hole in the street below?29,9995 Pa15,000 Pa60,000 Pa30,000.5 Pa
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macrophages that reside in tissues express several types of receptors that are broadly referred to as what types of receptors?
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what is the difference between a negative feedback system and a positive feedback system?
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Woolly mammoths became extinct around 4,000 years ago. A recent study conducted by scientists found that the last generations of woolly mammoths were plagued by harmful gene mutations. Some of the mutations caused them to have softer fur that didnt protect them from the cold, a diminished sense of smell, and digestive problems.A species potential for evolution is based on four factors:the potential for a species to increase in numberthe heritable genetic variation of individuals in a species due to mutation and sexual reproductionorganisms competing for limited resources such as food or water in their environmentthe proliferation of those organisms that are better able to survive and reproduce in the environmentIn two to three paragraphs, explain why the last generations of woolly mammoths couldnt meet these factors to evolve in a changing environment. Also explain how data such as the fossil record and DNA evidence can identify the factors that can lead to the evolution of a species.
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What is the name of the scientists who determined the structure of DNA?
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Put the phases of the cardiac cycle in the correct order, starting after ventricular filling. isovolumetric contraction, ventricular ejection, isovolumetric relaxation ventricular ejection, ventricular relaxation, isovolumetric contraction
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what is the most frequently broken bone in the body
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The diagram of the human spine shows the locations of cartilaginous discs and vertebrae.A. Identify one function of the cartilaginous discs in a healthy human spine.B. Identify one function of the vertebrae besides protecting the spinal cord.A herniated discs is a serious injury because it often presses on the spinal cord.C. Describe the main function of the spinal cord.D. Identify one likely symptom caused by herniated discs and explain why the herniated dics causes the symptoms you identified.
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soon, life insurance companies, health insurance companies,employers, and the government will have the tools to predict our future health. Is this too much information for them to have? is there any way to stop it
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What lymphatic organs filter the blood?
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