If both parents have blue eyes, the odds of their baby having blue eyes is 100 percent. If both parents have brown eyes but possess one copy of the blue-eyed gene, the odds of their offspring having blue eyes is one in four.
According to Science Daily, the allele, or version of the gene, for blue eyes is recessive to the allele for brown eyes. Therefore, for a person to have blue eyes, that person must have two copies of the blue-eyed allele. This means that people who lack the blue-eyed gene cannot produce blue-eyed children unless there is a genetic mutation.Learn More
The pyrimidine bases of DNA are cytosine and thymine. One pyrimidine combines with one purine to make up a rung of the DNA double helix. Nucleotides, the building blocks of DNA, comprise a phosphate group, a five-carbon sugar and either or a purine or a pyrimidine.Full Answer >
tRNA interprets the nucleotide sequence of mRNA to build the corressponding amino acid sequence. tRNA reads codons of mRNA to build proteins. tRNA does its job after the mRNA is made ready for translation.Full Answer >
Austrian monk Gregor Mendel discovered the principles of heredity that became the foundation of modern genetics. His experiments in his monastery's garden demonstrated the exchange of characteristics between pea plants.Full Answer >
Humans have 22 pairs of autosomes, or 44 autosomes in total. Autosomes are chromosomes that are not sex chromosomes (allosomes). Although humans have 23 pairs of chromosomes, only 22 of these are autosomes.Full Answer >