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BSC 1010 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS 100% VERIFIED GRADED A++
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BSC 1010 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS 100% VERIFIED GRADED A++ _____ is when an organism has more than two complete sets of chromosomes. Polyploidy When part of the chromosome has flipped its ordinary order. Inversion Change in one base of DNA that creates a premature sto...

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  • September 22, 2024
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  • 2024/2025
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BSC 1010 EXAM QUESTIONS AND ANSWERS WITH

COMPLETE SOLUTIONS 100% VERIFIED GRADED A+

+
_____ is when an organism has more than two complete sets of chromosomes.


Polyploidy


When part of the chromosome has flipped its ordinary order.


Inversion


Change in one base of DNA that creates a premature stop codon.


Nonsense mutation


Humans are _____ and have the XX-XY system of sex determination.


mammals


The _____ peptide binds to the _____ recognition particle to make sure that a ribosome that is making

a protein destined to be made on rough ER gets to the RER.


signal


The _____ strand of DNA is made discontinuously.


lagging


Transcription occurs in the _____ of a eukaryotic cell.

,nucleus


The genetic code has more codons than amino acids.


degenerate


This enzyme adds repeated units of DNA to the ends of chromosomes.


Telomerase


When the tRNA's anticodon binds to the mRNA's codon, it is called codon ____


recognition


An organism that does not have a true set of chromosomes (one or more chromosomes have greater

or lesser than normal number) is said to be __.


aneuploid


Process of making RNA from DNA.


transcription


Meselson-Stahl experiment with N14 and N15 proved that DNA replicates ______ -conservatively.


semi


A mutation that changes DNA sequence but does not change amino acid sequence.


silent


Part of tRNA that binds to the codon of mRNA.


anticodon


Codes for amino acid sequence in mRNA of eukaryotes.

,exon


DNA has two strands (sugar phosphate backbones) that run in opposite direction is called __.


anti-parallel


Enzyme that unwinds DNA helix during replication.


helicase


__ linked genes are found on the X chromosome in humans


sex


Process of making protein from mRNA.


translation


The frequency of crossing over or recombination between two genes is proportional to the ___

between to the two genes.


distance


Down's syndrome and XXX female are both example of ___.


trisomy


Releases torsional strain as DNA helix is opened up.


gyrase


Females with only one X chromosome (X0) have __ syndrome.


turner


The "signal ___" binds to the signal recognition particle which targets the protein to the RER.

, peptide


Males with more than one X chromosome (XXY, XXXY) have __ syndrome.


kleinefelter


At the 5' end of the eukaryotic mRNA is a modified G, which is called a 5' ____.


cap


Beadle and Tatum proposed the one gene one __ hypothesis.


enzyme


A chromosome abnormality with only one chromosome where two is normal number.


monosomy


Factory site where proteins are synthesized (singular form of word).


ribosome


a mutation in DNA that changes one and only one amino acid in a polypeptide chain


missense


Ants and __ (plural form) often have the haploid-diploid system of sex determination.


bees


Short piece of RNA made by enzyme to provide DNA polymerase with a 3' hydroxyl.


primer


The __ strand of DNA is made continuously.


leading

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