Chromosomes
A trait is an observable, physical characteristic of an organism (a phenotype). A FACTOR is the underlying genetic cause of the TRAIT (the genotype).
The ear lobe trait is not located on a specific chromosome, as it is a common genetic trait that is not influenced by a single gene or located on a specific chromosome. The presence or absence of ear lobes is determined by multiple genetic factors.
recessive trait
the form of a given gene that inheriting only one copy of results in the expression of the trait coded by that allele of the gene if it was recessive instead inheriting two copies would be required for its expression
william howe
The alleles for any trait in a zygote come from the genetic material contributed by the two parents. Each parent donates one allele, which determines the characteristics of the trait in the offspring.
A sex-linked trait is a genetic characteristic that is determined by genes located on the sex chromosomes, specifically the X or Y chromosomes. This differs from other types of genetic traits because they are not influenced by the sex chromosomes and can be located on any of the other chromosomes in the cell.
Genotype is the genetic makeup of a trait.
In the first generation, new traits arise from the combination of genetic material from the two parent organisms. These traits result from the recombination of genetic material during reproduction, leading to genetic diversity in the offspring.
genetic likeness.
Identical twins would show more concordance for a chiefly hereditary trait compared to fraternal twins or siblings, as they share all of their genetic material. This higher genetic similarity increases the likelihood of both twins expressing the trait if it is primarily influenced by genetics.
A genetic trait.