What would be the consequence of the resulting gametes if each of the following occurred? (discuss the consequence for all four gametes produced).
a. nondisjunction (lack of separation) of one homologous pair in meiosis i
b. crossing over does not complete – the breakage of the two sister chromatids occurs, but they are not joined to the opposite chromosome.
c. synapse does not occur between the sex chromosomes, so each replicated sex chromosome lines up individually in meiosis i.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

wha is what i will use to get my free points

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.