Answer: Forming the embryo and providing DNA.
Explanation: The egg is a cell that is used to reproduce. It is the very beginning of what will become the embryo and eventually the baby. The sperm fertilizes the egg and contributes 50% of the embryo DNA to the ova (the other 50% of DNA comes from the egg, however sperm only contributes DNA to the egg during the fertilization process whereas the egg has a much more important role). The sperm and egg meet, the egg becomes fertilized and loaded with the DNA it needs to form. The egg provides nutrients needed for the embryo to grow until it is fully gestated.
The 13 elements that are room temperature gases are radon (Rn), xenon (Xe), krypton (Kr), argon (Ar), chlorine (Cl), neon (Ne), fluorine (F), oxygen (O), nitrogen (N), helium (He) and hydrogen (H). Most non-metals in the periodic table have a gaseous elemental form.
Answer:
The fraction of demes in each set is likely to become fixed for allele A1 versus A2 are
A1 = 40 demes
A2 = 60 demes
Explanation:
Fixing of an allele refers to that particular allele being solely present in the population i.e. all other allelic forms of that gene have vanished. The fraction of demes being fixed for a particular allele depend on the its frequency.
Therefore, for both sets, the fraction of demes being fixed for A1 = frequency*total number of demes = 0.4 * 100 = 40 demes
the fraction being fixed for A2 = 0.6 * 100 = 60 demes
Answer:
The correct answer is: Maggots do not arise spontaneously but from eggs laid by adult flies.
Explanation:
According to the experiment Redii, The maggots are present only in the open jar not in the sealed jar. The adult flies can not go in or out of the jar to the meat and can not lay the eggs on meat whereas in an open jar the adult flies can easily get in the jar and lay the eggs on meat.
On the basis of the above response and explanation, it can be concluded and hypothesize that maggots do not arise spontaneously but from eggs laid by adult flies.
