Lesson 842 of 1524
Genetic, Prenatal, and Perinatal Health
Genotype is the unique combination of individual genes, and phenotype is the way these genes express themselves physically and behaviorally
Practice this chapterGenotype is the unique combination of individual genes, and phenotype is the way these genes express themselves physically and behaviorally Different types of genetic inheritance (recessive/dominant, incomplete dominance, codominance) determine the way the inherited genes are expressed
Genes and environments mutually influence gene expression, and phenotype is observed through epigenetic effects and gene-environment interactions Humans have forty-six paired chromosomes after receiving twenty-three, half of each pair, from each biological parent
gene — hereditary unit composed of a specific DNA sequence that occupies a specific location along a chromosome in an individual. incomplete dominance — form of genetic expression in which both inherited alleles are partially expressed. chromosome — strand of the DNA sequence in the nucleus of an individual’s cells that carries genes transmitting hereditary information. genotype — individual’s particular genetic composition of alleles at specific locations.
Worked example
What does “gene” mean in Genetic, Prenatal, and Perinatal Health?
- 1Use the wording this chapter gives for gene.
- 2The book says: hereditary unit composed of a specific DNA sequence that occupies a specific location along a chromosome in an individual.
- 3Do not use the meaning of incomplete dominance. That term means form of genetic expression in which both inherited alleles are partially expressed.
Result: hereditary unit composed of a specific DNA sequence that occupies a specific location along a chromosome in an individual
Why. That is the meaning this chapter gives for gene.
Do not swap gene and incomplete dominance. gene means hereditary unit composed of a specific DNA sequence that occupies a specific location along a chromosome in an individual. incomplete dominance means form of genetic expression in which both inherited alleles are partially expressed.
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.