WGU PATHO D236 MC2 Cellular Response and
Adaptation
Points:
100%
Correct
1. A newborn exhibits the manifestations of a genetic disorder. A five-generation family history of each
parent does not indicate the presence of the disorder. Which type of mutation does the nurse
recognize?
One that changes both the DNA and RNA sequence
An undetected genetic defect in one of the parents
An undetected defect in an earlier generation
An alteration that likely occurred spontaneously
Feedback:This is correct. A mutation can occur spontaneously because of environmental influences.
This is the most likely cause based on the other factors examined.
Correct
2. Which defines translation in protein synthesis?
Process of RNA synthesis
Process of DNA synthesis
Process of protein synthesis from RNA
Feedback:This is correct. The process of protein synthesis from RNA at ribosomes is called
translation.
Process of ribosome formation
Correct
3. Which definition applies to the term karyotype?
All the chromosomal pairs of a species
All the chromosomal pairs in an individual
Feedback:This is correct. Each individual has a fixed number of chromosomes and gene patterns.
This overall picture is a karyotype.
All the normal chromosomal pairs in an individual
All the abnormal chromosomal pairs in an individual
Correct
4. Genomics is the study of the interactions of all the nucleotide sequences within an organism. Which
statement regarding genomics is correct?
Genomics is about the expression of genes
DNA is a single structure that can be broken down
The nitrogen base in RNA is thymine instead of uracil
Genomics recognizes genes as the basic units of heredity
Feedback:This is correct. Each DNA molecule contains many genes, which are the basic units of
heredity. A gene is a specific arrangement of nucleotide bases, which carry a code for constructing
proteins.
Correct
5. During fertilization each parent contributes to the DNA being passed on to the offspring. Which
genetic expression in the offspring is validation of the genetic contribution by a parent?
Eye color of the offspring
Hair color of the offspring
The sex of the offspring
Feedback:This is correct. Each chromosome carries the genes for certain traits, so except for those
genes located on the sex chromosomes, everyone has two copies of each gene. The female genotype
is usually XX, and the male genotype is usually XY. The sex of the offspring is determined by the
male; XX results in a female, XY in a male.
The most dominant parent
Correct
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