Answer:
c. separation of homologs at anaphase I
Explanation:
Law of Segregation is also popularly known as purity of gamete. Law of Segregation is proposed by Mendel’s which stands universal law till date. The law states that allele (alternative form of same gene) pairs separate or segregate at the time of gamete formation.
The gametes form by meiosis or reductional division so, each gamete receives only one allele of trait.
During metaphase I of meiosis the homologous chromososmes gets arranged on the central plate and get attached to the spindle fibres and then anaphase I begins with the separation of each chromosome of the homologue. Each chromosome of a pair moves to opposite poles.
Geologic time: <span>The </span>geologic time<span> scale (GTS) is a system of chronological dating that relates </span>geological<span> strata (stratigraphy) to </span>time<span>. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.
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Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability
I believe the answer is that a dimpled chin is controlled by a single gene with multiple alleles and height is controlled by many genes. Alleles are alternative forms of a gene, and they are responsible for differences in phenotypic expression of a given trait. A gene for which at least two alleles exist is said to be polymorphic.