nucleus function correct answers Stores hereditary material and coordinates the cells activities (growth, intermediary metabolism, protein synthesis, and reproduction)
Endoplasmic Reticulum (ER) function correct answers folding and transport of proteins in vesicles to Golgi apparatus.
Ribosom...
NROS 310 Exam 1 Study Questions || A+ Guaranteed.
nucleus function correct answers Stores hereditary material and coordinates the cells activities
(growth, intermediary metabolism, protein synthesis, and reproduction)
Endoplasmic Reticulum (ER) function correct answers folding and transport of proteins in
vesicles to Golgi apparatus.
Ribosome function correct answers protein synthesis (translation)
Peroxisome function correct answers digestion of fatty acids, absorb nutrients that cells has
acquired. Found in liver cells (digestion of alcohol)
Lysosome function correct answers Digest things and waste removal. Hold enzymes that were
created in the cell.
Mitochondria function correct answers cell death, production of ATP, regulate cell metabolism
Golgi Apparatus function correct answers cells post office. Sorting and packing of proteins for
secretion. Involved in transport of lipids around cell and creation of lysosomes.
Plasma Membrane function correct answers Protect cell from surroundings. Selective permeable
to ions
If cells in an organism have the same genomic DNA, what makes a liver call different than a
neuron? correct answers Different proteins are expressed, there are different post transcriptional
factors
What are the nucleotides that make up DNA and how do they interact? What are the benefits of
having two strands of DNA rather than a single sequence? correct answers
What is the definition of a gene? correct answers A sequence of DNA that codes for a functional
produce which contains all of the elements that regulate its expression.
Genome definition correct answers the haploid set of chromosomes in a gamete or
microorganism or in each cell of a multicellular organism
Allele Definition correct answers one of two or more alternative forms of a gene that arises by
mutation and are found at the same place on a chromosome.
Genotype definition correct answers The specific set of alleles forming the genome of an
indicudual
Pheontype definition correct answers the visible character of the individual.
, What is meany by dominant and recessive mutations in a classical genetics term and a
biochemical term? correct answers Biochemical:
dominant is a gain of new or usual function and recessive is protein is good but access is bad
(regulatory sequence) nonfunctional genes
Is genetics destiny? Is it possible to have a mutation that normally causes disease and not show
any symptoms? correct answers
What is the normal inheritance pattern of recessive and dominant mutations? correct answers
Central Dogma of Molecular Genetics correct answers - Every cell has the same genomic DNA
-Genomic DNA gets turned into mRNA (transcription)
- mRNA gets turned into proteins (translation)
- Genomic DNA is what is passed down to offspring.
Is genetics destiny? Is it possible to have a mutation that normal causes disease and not show any
symptoms? correct answers Yes, compensation from other genes. conditional mutation
(temperature) incomplete dominance, silent mutation
What does it mean for a mutation to be partially penetrant? correct answers animals have a
particular phenotype, but some of the population will express mutations despite being in the
same environment. This can happen by change (levels of expression of a gene can vary from
person to person). it is very hard to control "environment bc it is very complex.
What are the basic steps that take place in a cell that turn a sequence of genomic DNA into a
functional protein correct answers Transcription (DNA to RNA) , translation (RNA to protein w)
What of those steps are regulated correct answers transcription is regulated
What is a promoter and what is its function? correct answers Promoters are DNA sequences
located in the 5' region adjacent to the transcriptional start site. RNA polymerase and accessory
proteins (transcription factors) bind to the promoter to initiate production of an mRNA transcript.
What are enhancers and how doe they differ from promoters? correct answers enhancer is a short
region of DNA that can be bound by proteins (activators) to increase the likelihood that
transcription of a particular gene will occur. These proteins are usually referred to as
transcription factors.
How is it possible for sequences far from the transcription site to affect the rate of transcription?
correct answers
Describe the consequence of acetylation and methylation of hstones for chromatin structure.
How are these modifications triggered? correct answers
How does the X Chromosome inactivation work? correct answers
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