The statement 'a suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene' is TRUE about mtDNA.
<h3>What is mitochondrial DNA?</h3>
Mitochondrial DNA (mtDNA) is a special class of genetic material contained inside the mitochondria of eukaryotic organisms.
This genetic material (mtDNA) may result very useful to identify samples by making comparisons of the nucleotide sequence.
Mitochondrial DNA typing is a useful strategy used in criminology based on matching an unidentified sample of mtDNA with another obtained at the crime scene.
In conclusion, the statement 'a suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene' is TRUE about mtDNA.
Learn more about mtDNA here:
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Answer:
The correct answer is - 3/16 or 18.75% portion will be resistant to both Bt and DDT.
Explanation:
It is given that bollworms that are susceptible to Bt are represented by either RR or Rr and resistance one are shown by rr genotype and bollworms that are resistant to DDT are represent TT or Tt genotype and susceptible to DDT have tt genotype.
Cross: RR tt with rr TT
Gametes: Rt and rT
F1 cross:
RT
rT RrTt ( susceptible Bt and resistant DDT)
F1 Cross with F1
Gametes: RT, Rt, rT and rt
cross:
RT Rt rT rt
RT RRTT RRTt RrTT RrTt
Rt RRTt RRtt RrTt RrTt
rT RrTT RrTt rrTt rrTt
rt RrTt Rrtt rrTt rrtt
The bold genotypes are the three out of 16 that are resistant to both DDT and Bt.
Chemical change because a chemical change is any change that results in the formation of new chemical substances.
DNA analysis reveals that they had common ancestors which are not very far in the Cladogram. They are very similar animals and share very much characteristics
Hope this helps!
