Answer:
The nucleus contains the protons and neutrons which takes up most of the mass of the atom.
Answer:
C. Traits present in the last common ancestor of a certain group of species under consideration.
Explanation:
Ancestral character traits are the one that is present in the last common ancestor and all of its descendant groups. For example, the presence of the vertebral column is an ancestral trait for all the vertebrate groups such as birds and mammals as it was present in their last common ancestor and is also shared by them.
Isotopes are atoms with the same atomic number but different atomic weights. Atoms of different isotopes are atoms of the same chemical element. They differ in the number of neutrons in the nucleus.
The genotype for the possible children is 'AATt, AAtt, Aatt, AaTt'. Woman has normal pigment which means she must have at-least one' 'A. her father is albino and albino allele is recessive , so his genotype is 'aa'. Then 'Aa' genotype is present in skin.
Woman cannot taste PTC because the ability ti taste PTC is dominant .So 'tt' genotype is present for tasting trait. Putting both the trait the woman's genotype is 'Aatt'.
(PTC) Phenylthiocarbamide tasting is a trait governed by pair of alleles , 'T' is for tasting dominant and recessive 't' is for non- tasting.The genotype of parents perform a punnett square to determine the F1 offspring. And the genotype of possible children can be determine.
To learn more about Phenylthiocarbamide tasting here
brainly.com/question/14551381
#SPJ4
