ATI Teas 7 Biology Questions and Correct Answers/ Latest Update / Already Graded

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ATI Teas 7 Biology Questions and
Correct Answers/ Latest Update /
Already Graded
Protein Synthesis


Ans: Forming proteins based on information in DNA and carried out by

RNA.




Transcription


Ans: DNA in nucleus is unzipped by RNA Helicase. mRNA creates and

delivers a copy to the ribosomes on the rough endoplasmic reticulum.




Translation


Ans: rRNA creates structure on ribosomes.


mRNA is decoded by tRNA which read the codons on mRNA. tRNA brings

amino acids to each codon. These amino acids then become protein.




Interphase

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Ans: G1, S, G2




G1 phase


Ans: Cell performs normal job, replicates organelles, and synthesizes

what's needed for DNA replication.


Checkpoint happens here.




S phase


Ans: DNA is replicated. (92 chromatin)




G2 phase


Ans: Cell grows, centrosomes mature and make microtubules.


Checkpoint happens here.




Mitosis


Ans: prophase, metaphase, anaphase, telophase

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Prophase


Ans: Chromatin condense and form "x" shape, nuclear envelope starts to

dissolve, centrosomes begin migrating to opposite side of cell.




Metaphase


Ans: Kinetochores form at centromere, nuclear envelope is fully dissolved,

centrosomes are at opposite sides of cell, and chromosomes line up in the

middle.


Checkpoint happens here.




Anaphase


Ans: Sister chromatids are pulled away from each other. Cell elongates.




Telophase/Cytokinesis


Ans: Nuclear membrane forms, chromatids become chromatin, and

cleavage furrow pinches parent cell to 2 identical daughter cells.