Answer:
All EeWw (100%)
Explanation:
This question involves two genes; one coding for earlobes and the other for hairline. According to the question, one parent is homzygous recessive for earlobe but homzygous dominant for hairline i.e. (eeWW) while the other parent is homzygous dominant for earlobe but homzygous recessive for hairline i.e. (EEww).
The cross between the two parents is as follows: eeWW × EEww. The following gamete combination will be produced by each parent:
eeWW - eW, eW, eW, eW
EEww - Ew, Ew, Ew, Ew
Using this gametes in a punnet square, the following proportion of offsprings will likely be produced:
All EeWw
Answer:
Some common insulators include wood, plastic, glass, porcelain and Styrofoam
Explanation:
During meiosis crossing over occurs at the pachytene stage, when homologous chromosomes are completely paired. At diplotene, when homologs separate, the sites of crossing over become visible as chiasmata, which hold the two homologs of a bivalent tighter until segregation at anaphase.
The answer is punctuated equilibrium. This is a theory in evolutionary biology that says the evolution of different species proceeds in a characteristic way of relative stability for very long periods interspersed with shorter periods. During this period new species emerge as others become extinct.
