The part of DNA which controls a specific character is:
Correct answer: B. Gene
- A. Allele
- B. Gene
- C. Locus
- D. Factor
Explanation
Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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More Inheritance questions
If an individual has a recessive phenotype for a given trait, the genotype must be:
Mendel was the first biologist to:
In humans, brown eyes (B) is dominant to blue eyes (b). A brown eyed man marries a blue eyed woman. The possible eye colours of their children are:
The position of gene is:
Variations are produced due to:
Partners of gene pair are: