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FREE AND STUDY GAMES ABOUT BIO 7-14 EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -58 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: the splitting of a cell into two daughter cells in the eukaryotic cell cycle is
Answer:
cytokinesis Question 2: what process leads to siblings only sharing, on average, 25% of their genetic material?
Answer:
random orientation Question 3: Eukaryotic chromosomes become visible with a light microscope before cell division because they
Answer:
become more tightly wound
Question 4: What type of RNA carries amino acids to the ribosomes?
Answer:
transfer RNA
Question 5: How does the spread of viruses differ between plants and animals?
Answer:
Viruses must penetrate through cell walls of plant cells and not animal cells Question 6: which of the following is correct about both binary fission and meiosis
Answer:
both replicate the DNA before the cell splits
Question 7: the genome of an organism is all of its
Answer:
generic material Question 8: The step of translation in which a mRNA, a small ribosomal subunit, and the initiator tRNA are aligned together is
Answer:
initiation Question 9: Oral infections with herpes simplex virus 1 can lie dormant in nerve cells for years.When a patient becomes stressed the virus is released, forming cold sores on the lips. Why would the virus form a cold sore?
Answer:
to spread to a new host Question 10: Oral infections with herpes simplex virus 1 can lie dormant in nerve cells for years.When a patient becomes stressed the virus is released, forming cold sores on the lips. Whiles lying dormant, the virus is in which of the following states?
Answer:
latent Question 11: the step of translation in which amino acids are added to the growing polypeptide is
Answer:
Elongation
Question 12: What molecule holds instructions for the synthesis of proteins and copies itself before cell divison
Answer:
DNA Question 13: bypassing a checkpoint in the cell cycle may result in a cancer cell
Answer:
continuing to divide and replicate with faulty DNA Question 14: meiotic cell division replicates a cell's DNA ___ and then divides ___
Answer:
once, twice Question 15: adaptive therapy aims to combat ___ amongst cancer cells that leads to tumor growth continuing even after therapy treatments
Answer:
competition
Question 16: Which is a common cause of cervical cancer
Answer:
human papillomavirus Question 17: In the section" investigating life:Evolutionary strategies in the Race Against Cancer," what did the researchers conclude?
Answer:
declining does therapy led to the smallest tumors Question 18: The phase of mitosis is which the centromeres split and sister chromatids are pulled to opposite poles of the cell is
Answer:
anaphase
Question 19: sexual reproduction and meiosis generate genetic variability by
Answer:
random fertilization, crossing over, random alignment
Question 20: when DNA replicated
Answer:
one strand of the original DNA ends up in each of the new DNA molecules Question 21: If the DNA in a cell consists of 20% adenine, then it will also contain ____guanine
Answer:
30%
Question 22: The correct sequence of stages of viral replication is
Answer:
attachment, penetration, synthesis, assembly, release Question 23: if you were told that you would get extra credit for finding a model showing chromosomes separating while sister chromatids were still attached, you would look for a model of
Answer:
anaphase 1
Question 24: the two main stages of the eukaryotic cell cycle are
Answer:
interphase and mitosis
Question 25: a tRNA molecule is "bilingual" because it binds to
Answer:
codons of mRNA and amino acids Question 26: people who have a single X chromosome are female, while those with XXY sex chromosomes are males. in order to be a female, a human
Answer:
cannot have a Y chromosome
Question 27: why is it essential that meiosis produce haploid cells?
Answer:
to prevent the number of chromosomes from doubling each generation
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