OBJECTIVE LIFE SCIENCE
GENETICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Each parent contributes only one allele for the ABO blood group to the offspring.
|
|
|
There are not enough nucleotides in a red blood cell to produce a third allele.
|
|
|
Each allele in the ABO group must be dominant or recessive
|
|
|
Blood group alleles are not segregated during meiosis.
|
Detailed explanation-1: -Answer and Explanation: An individual contains only two alleles of a gene for a particular trait because humans are diploid organisms and inherit one allele from each parent .
Detailed explanation-2: -The human ABO blood type alleles/trait is an example of a trait with multiple alleles. Three distinct alleles exist: allele A (IA), allele B (IB), and allele i (IO or i). If the allele A is present on the chromosome, protein A is produced, and the red blood cells of that individual contain protein A on their membrane.
Detailed explanation-3: -Since diploid organisms have two copies of each chromosome, they have two of each gene. Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles.