{"id":121066,"date":"2023-10-07T22:24:09","date_gmt":"2023-10-07T22:24:09","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=121066"},"modified":"2023-10-07T22:24:12","modified_gmt":"2023-10-07T22:24:12","slug":"bio-101-exam-123-and-final-nvcc-complete-courseactual-exam-real-exam-questions-and-correct-detailed-answers-with-rationales-verified-answers-already-graded-a","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2023\/10\/07\/bio-101-exam-123-and-final-nvcc-complete-courseactual-exam-real-exam-questions-and-correct-detailed-answers-with-rationales-verified-answers-already-graded-a\/","title":{"rendered":"BIO 101 EXAM 1,2,3 AND FINAL NVCC (COMPLETE COURSE)ACTUAL EXAM REAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+"},"content":{"rendered":"\n

BIO 101 FINAL EXAM NVCC 2 LATEST VERSIONS
(VERSION A & B) ACTUAL EXAM 200 REAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+
VERSION A
A population in which an extreme phenotype is favored undergoes __<\/em> selection.
A. disruptive
B. directional
C. stabilizing
D. artificial
E. polynomial – ANSWER- B. directional
Which of the following is NOT a mechanism of evolution?
A. mutation
B. natural selection
C. genetic drift
D. Hardy-Weinberg
E. gene flow – ANSWER- D. Hardy-Weinberg
Plato’s view of species:
A. was consistent with the modern concept of evolution
B. did not allow for evolutionary change
C. included species that do not actually exist<\/p>\n\n\n\n

D. recognized that each individual in a species is unique
E. allowed for limited evolution within species – ANSWER- B. did not allow for
evolutionary change
Whose philosophy was based on the “ideal form”?
A. Darwin
B. Lamarck
C. Darwin and Wallace
D. Cuvier
E. Plato – ANSWER- E. Plato<\/p>\n\n\n\n

    \n
  1. Which of these statements BEST illustrates the theory of catastrophism?
    A. Species become extinct due to natural disasters, such as floods and volcanic
    eruptions
    B. Only plant species have become extinct
    C. Only extinct species appear in the fossil record
    D. There are no humans in early fossil records because they had not been created
    yet
    E. The fossil record is incomplete – ANSWER- A. Species become extinct due to
    natural disasters, such as floods and volcanic eruptions<\/li>\n\n\n\n
  2. The concept that Earth’s present landscape is due to gradual geologic processes
    was proposed by:
    A. Lyell
    B. Lamarck
    C. Buffon
    D. Malthus<\/li>\n<\/ol>\n\n\n\n

    E. Aristotle – ANSWER- A. Lyell<\/p>\n\n\n\n

      \n
    1. Which statement illustrates Lamarck’s theory on the mechanism of evolution?
      A. Fish with coloration that matches the river bottom they inhabit will survive to
      reproduce
      B. Plants that can survive in less light will become the dominant species in shaded
      areas
      C. Birds with bright colors will attract more mates and pass on the colorful
      plumage
      D. A man who routinely shaves the hair off his head will have sons who become
      bald
      E. Giraffes with longer necks survived and reproduced faster because they could
      reach a better food source – ANSWER- D. A man who routinely shaves the hair off
      his head will have sons who become bald
      Which of the following is INCORRECTLY paired?
      A.Buffon — suggested new species arise from a common ancestor
      B.Hutton — theory of catastrophism that brief & violent global upheavals are
      responsible for geological formations
      C.Cuvier — recognized that lower layers of rock contain older fossils
      D.Lyell — uniformitarianism that natural processes are slow and steady –
      ANSWER- B.Hutton — theory of catastrophism that brief & violent global
      upheavals are responsible for geological formations
      What is an adaptation?
      A.a genetic change over time
      B.an increase in reproductive success by certain individuals
      C.a trait that is heritable and confers reproductive success<\/li>\n<\/ol>\n\n\n\n

      D.differential reproductive success of a particular individual
      E. B & D – ANSWER- C.a trait that is heritable and confers reproductive success
      Why do birds with large beaks predominate over birds with small beaks in dry
      seasons?
      A.Birds with large beaks are better at defending territories.
      B.Birds with large beaks have larger body sizes and survive better in a drought.
      C.Birds with large beaks are betting at finding mates.
      D.Birds with large beaks can open tough seeds that are more common in a drought
      E.All of the above – ANSWER- D.Birds with large beaks can open tough seeds
      that are more common in a drought
      Which of the following individuals is the fittest?
      A.a dandelion that produces 1000 seeds but only 4 survive to reproduce
      B.a cat with 6 kittens of which 5 later reproduce
      C.a large bull elk that successfully defends a large territory
      D.an elephant that produces and cares for 1 offspring once every 5 years –
      ANSWER- B.a cat with 6 kittens of which 5 later reproduce
      In a population of dogs, long ears are dominant over short ears. If 50 of 200 dogs
      in a population have short ears, how many of the long-eared dogs are homozygous
      dominant? A. 25
      B. 50
      C. 75
      D. 100
      E. 60 – ANSWER- B. 50
      .get pdf at ;https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n\n\n\n

      BIO 101 EXAM 3 NVCC ACTUAL EXAM 100 REAL
      EXAM QUESTIONS AND CORRECT DETAILED
      ANSWERS WITH RATIONALES (VERIFIED ANSWERS)
      |ALREADY GRADED A+
      Eukaryotic chromatin is composed of – ANSWER- DNA and proteins
      What is produced if a cell completes mitosis but does not undergo
      cytokinesis? – ANSWER- one cell with two nuclei, each identical to the
      nucleus of the parent cell
      Humans produce skin cells by mitosis and gametes by meiosis. The
      nuclei of skin cells produced by mitosis will have – ANSWER- twice as
      much DNA as the nuclei of gametes produced by meiosis
      Compared to most prokaryotic cells, eukaryotic cells typically have –
      ANSWER- more DNA molecules and larger genomes.
      During mitosis in animal cells, at which phase do centrioles begin to
      move apart? – ANSWER- prophase
      Where do the microtubules of the spindle originate during mitosis in
      animal cells? – ANSWER- centrosome<\/p>\n\n\n\n

      A group of cells is assayed for DNA content immediately following
      mitosis and is found to have an average of 8 picograms of DNA per
      nucleus. How many picograms would be found at the end of S and the
      end of G2? – ANSWER- 16; 16
      What is a cleavage furrow? – ANSWER- a groove in the plasma
      membrane between daughter nuclei
      Cells from advanced malignant tumors frequently have very abnormal
      chromosomes as well as an abnormal number of chromosomes. What
      might explain the association between malignant tumors and
      chromosomal abnormalities? – ANSWER- Cell cycle checkpoints are
      not in place to stop cells with chromosome abnormalities.
      Which is the first checkpoint in the cell cycle where a cell will be caused
      to exit the cycle if this point is not passed? – ANSWER- G1
      Which of the following is true concerning cancer cells? – ANSWERThey evade the normal controls that trigger programmed cell death
      Most animal cells exhibit anchorage dependence, which means that in
      order to divide – ANSWER- cells must be attached to a substrate or
      extracellular matrix of a tissue.
      Researchers began a study of a cultured cell line. Their preliminary
      observations showed them that the cell line did not exhibit either
      density-dependent inhibition or anchorage dependence. What could they<\/p>\n\n\n\n

      conclude right away? – ANSWER- The cells show characteristics of
      tumors.
      Through a microscope, you can see a cell plate beginning to develop
      across the middle of a cell and nuclei forming on either side of the cell
      plate. This cell is most likely __<\/em><\/strong>. – ANSWER- a plant cell in
      the process of cytokinesis
      If a horticulturist breeding gardenias succeeds in having a single plant
      with a particularly desirable set of traits, which of the following would
      be her most probable and efficient route to establishing a line of such
      plants? – ANSWER- Clone the plant asexually to produce an identical
      one.
      Which of the following descriptions correctly defines a genome? –
      ANSWER- the complete set of an organism’s genes
      Which of the following is a true statement about sexual versus asexual
      reproduction? – ANSWER- In sexual reproduction, individuals transmit
      50% of their genes to each of their offspring.
      Which of the following is true of a species that has a chromosome
      number of 2n = 16? – ANSWER- Each cell has eight homologous pairs.
      Referring to a plant’s sexual life cycle, which of the following processes
      leads directly to the formation of gametes? – ANSWER- gametophyte
      mitosis
      .get pdf at ;      https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n\n\n\n

      BIO 101 EXAM 2 NVCC ACTUAL EXAM 100 REAL
      EXAM QUESTIONS AND CORRECT DETAILED
      ANSWERS WITH RATIONALES (VERIFIED ANSWERS)
      |ALREADY GRADED A+
      What is ATP molecule consists of? Why is it unstable? – ANSWER- is
      composed of ribose (a sugar), adenine (a nitrogenous base), and three
      phosphate groupsThe triphosphate tail of ATP is the chemical equivalent
      of a compressed spring
      What is a catalyst? – ANSWER- is a chemical agent that speeds up a
      reaction without being consumed by the reaction
      What are the three things required for any reaction to occur? –
      ANSWERHow does an enzyme lowers the activation energy of the substrate? –
      ANSWER- Enzyme can speed up a reaction by lowering the EA barrier
      without itself being consumed, also by right orientation of molecules.
      Which factors affect enzyme activity? – ANSWER- temperature
      pH
      substrate concentration<\/p>\n\n\n\n

      How competitive and non competitive inhibitors differ from each other?<\/p>\n\n\n\n