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Please use the following information for the next question Y tube balloons rubber sheet The rubber sheet represents the operation of the diaphragm rib-cage O alveolar sacs O pleural membrane
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Bio 102 plz help
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5: PREPARED SLIDES OF MITOSIS IN ANIMAL CELLS The prepared slides that you will study asrepresentative of animal cells are from the whitefish blastula. A blastula is an early stage in the development ofan animal embryo. The cells are large and the rate of division is high. PROCEDURE 1. Work individ… Show more… Show more
1. Knowing what you now know about astrocyte function, speculate on two mechanisms whereby astrocytes could be involved in one or all of these disorders.
2. Do you think it’s possible that both neuron and astrocyte dysfunction could combine to cause any of these disorders, why or why not?
A scientist took a random sample of adult fruit flies from a population. He measured the frequency of the ADF allele in this sample (generation 0). He then:
• selected 100 of these insects at random and kept them in a container
• fed the insects food containing alcohol• let the insects reproduce• repeated these steps for 45 generations of fruit fly reproduction.
The scientist measured the frequency of the ADF allele in the 45th generation.
Question:
Suggest why the scientist took his sample from the population at random. (1mark)
Bio 2 someone answer all this
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Text Shape Media Comment Collaborate 1)Every cell undergoing mitosis first doubles its total amount of: A)protein C) DNA B) lipid D) RNA 2)DNA in eukarotic cells is found on: A) chromosomes C) Golgi bodies B)ribosomes D) microtubules 3) The phase in the cell cycle wherein DNA is duplicated is called the:… Show more… Show more
Answer this plz
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Text Shape Media Comment Collaborate 1)Every cell undergoing mitosis first doubles its total amount of: A) protein C) DNA B) lipid D) RNA 2)DNA in eukarotic cells is found on: A) chromosomes C) Golgi bodies B) ribosomes D) microtubules 3) The phase in the cell cycle wherein DNA is duplicated is called the: A)S phase C) R phase B) M phase D) T phase 4)Small microtubule bodies that serve as centers for the mitotic spindle are called: A) nucleoli C) mitochondria B) centrosomes D) nuclei 5) The mitotic phase wherein chromosomes migrate toward opposite poles of the cell is called: A) prophase C) metaphase B) telophase D) anaphase 6)During mitosis in the plant cell, the end of telophase is marked by the production of a between the two new cells. A) cell plate C) chromosome B) centrosome D) ribosome 7) The Gi checkpoint is the: A) period during which DNA is synthesized B) point in the cell cycle where the cell receives the signal to divide C) the start of anaphase D) the end of telophase 8) A protein involved in cell cycle control is: A) cyclin C) triacylglycerol B) hemoglobin D) MRNA 9) When dividing mammalian cells stop dividing once they encounter other cells this is alled:
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D9: Steinbock
D9: Steinbock
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All posts in this forum should be made by 11:59pm Sunday Week 6.
Has Steinbock shown that a first-trimester fetus cannot be wronged? Explain. Raise objections in response to at least one other classmate. Respond to at least one classmate’s objection (whether it is an objection to your original post or an objection raised by someone else against another classmate’s post).
Answer this
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10)When cancer cells escape the primary tumor and migrate elsewhere in the body this is called: A) transformation C) mutation B) anchorage dependence D) metastasis 11)A clone is: A) produced by fusion of sperm and egg B) produced after meiosis C) a group of genetically identical individuals with the same parent D) consists of individuals with the same parents but with different gene combinations 12) If a diploid cell has 46 chromosomes, meiosis will produce haploid cells with chromosomes. A) 46 C) 92 C) 23 D) 67 13) During meiosis I chromosome pairs move to opposite ends of the cell during A) prophase I C) anaphase I B) metaphase I D) telophase I 14)During crossing over: E) nonsister chromatids exchange DNA segments F) kinetochores attach microtubules to chromosomes G) a cleavage furrow forms in the cell center H) DNA in chromosomes replicates 15)One of the mechanisms that contributes to genetic diversity is: I) independent assortment of chromosomes J the production of 2 centrioles per cell K) the ability of each gametes to end up with half the initial number of chromosomes L) the cellular plasma membrane 16)Genetic variability is important to evolution because: M) it ensures each organism has chromosomes N) it ensures that each egg gets fertilized by a sperm O) it ensures that each cell has mitochondria
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3. Which of the following is NOT a mechanism by which Na /glucose symporters could be removed (lost) fromthe apical surface of intestinal epithelial cells? a. Endocytosis of claudin and occludin. b. Endocytosis ofNa /glucose symporters, followed by transcytosis. c. Endocytosis of Na /glucose symporters, fo… Show more… Show more
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8. WORK UNIT PLANNING: Determines priorities of the work unit on a daily and weekly basis; identifies resources (employees and capital) needed to accomplish goals and allocates resources as allowed to support the priorities and goals established for the work unit and organization as a whole.
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