1 ) Mitochondria are unusual organelles in that they contain their own genomes.
ID: 71787 • Letter: 1
Question
1 ) Mitochondria are unusual organelles in that they contain their own genomes. The human mitochondrial genome is a
Select one:
single-stranded circular DNA molecule.
double-stranded circular RNA molecule.
single-stranded linear RNA molecule.
single-stranded linear DNA molecule
double-stranded circular DNA molecule.
2) Around 35,000 years ago the Neanderthals that had settled throughout Europe were restricted to living in a corner of Europe and became
Select one:
fully incorporated into the modern European group.
extinct.
more technically advanced than Homo sapiens.
more socially and culturally advanced than Homo sapiens.
the dominant population throughout Europe.
3) DNA chip technology can be used to compare the genomes of different individuals. The green and red spots on the DNA chip are illuminated with a laser to detect a DNA sequence that base pairs with a specific gene probe on the chip. Differing intensities of the green and red spots on the chip can indicate that
Select one or more:
some genes have been deleted or removed from the genome represented in one or both of the samples.
one or both of the DNA samples contain(s) different gene sequences than the control DNA sample library on the chip.
the karyotypes of the two individuals sampled will also differ.
these genomes come from identical twins.
there are gene copy number differences between the different genomes.
4) Mitochondria are maternally inherited, which means that an individual's mitochondrial genes are inherited from
Select one:
both the individual's mother and father.
the individual's mother's grandfather.
an X chromosome.
the egg cell that was fertilized to become the individual's zygote.
the individual's father.
5) Suppose you are designing a DNA fingerprint analysis. You want to improve the reliability of the fingerprint to tell the difference between the original sources of DNA samples. The best way to do this is to increase the number of DNA probes used in the fingerprint analysis.
Select one:
True
False
Explanation / Answer
1. double-stranded circular DNA molecule.
Explanation:- The human mitochondrial genome is a circular deoxyribonucleic acid (DNA) molecule (like a bacterial chromosome ). mtDNA is organized as a circular, covalently closed, double-stranded DNA.
2. more technically advanced than Homo sapiens.
3.one or both of the DNA samples contain(s) different gene sequences than the control DNA sample library on the chip.
there are gene copy number differences between the different genomes.
4. an X chromosome
Explanation:-In most multicellular organisms, mtDNA is inherited from the mother (maternally inherited) and mother has X-chromosomes.
5. True
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