Quincy has type B blood.

Which allele combinations could she possibly have? Select two options.

IAi

IBi

IBIB

IAIB

ii

IBi and IBIB

Explanation:

Blood group in humans is determined by a single gene with three alleles (iA, iB and i). Alleles iA and iB are both dominant over i. This means that i allele will only be expressed in a homozygous state.

In the ABO blood group system, individuals will possess the following blood types when they possess the following genotypes:

Type A- iAiA or iAi

Type B- iBiB or iBi

Type O- ii

Alleles iA and iB are codominant, this means that they both phenotypically express themselves when combined as neither is dominant or recessive to the other. Hence, in an heterozygous state;

iAiB, the blood type of the individual will be Type AB.

Following this, Quincy with a type B blood will possess an allelic combination of iBiB (homozygous) or iBi (heterozygous) in her genotype.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

it depends on how much it could carry.