Autosomal traits are inherited via genes that do NOT determine an individual's sex. Sex-linked traits, however, are inherited via genes that DO determine and individual's sex (X and Y chromosomes). (The use of Punnett squares is the best way to help visualize this difference.) Autosomal traits are passed on from parents to offspring independent of gender, whereas, because sex-linked traits are carried on the X chromosome and NOT the Y chromosome, males (XY (hemizygous)) have a 50% chance of being either recessesive or dominant for the trait . With sex-linked traits, females however have more possible outcomes in terms of dominant/recessive traits because of their two X chromosomes (XX). This means that both Xs may be dominant (homozygous dominant), both Xs may be recessive (homozygous recessesive), or one X may be dominant while the other is recessive (heterozygous- the dominant trait would be physically represendted). Some examples of autosomal traits are ability/inabilitiy to roll toungue, freckles/no freckles, widows peak/continuous hairline, etc. Two examples of sex-linked traits are Colorblindness and Hemophilia.
A mutagen is a substance that CAUSES a mutation. Essentially, mutagens are the cause, mutations are the effect. Simple as that :)
No, a defective allele is not always recessive, and a normal allele is not always dominant. The relationship between alleles can be more complex and dependent on specific genetic mechanisms. Dominance and recessiveness are general terms used to describe the relationship between two alleles at a specific gene locus.
Both nonsense and missense mutations are point mutations - meaning a single base has been substituted. The difference between the two is that a missense mutation results in an amino acid being replaced with a different amino acid, whereas a nonsense mutation results in a premature stop codon.
a beneficial mutation in an animal, plant, cell or bacteria will allow it to have a better chance of survival and allow it to continue passing on its DNA in its offspring. a harmful mutation does the exact opposite it hinders the animals survival and will eventually lead it's species to extinction.
Missense mutation: changes one sense codon to another, resulting in incorporation of amino acid.Nonsense mutation: changes a sense codon into a stop (or nonsense) codon, resulting in premature termination.
mutation is an alteration in the nucleotide sequence of a gene whereas variation is any difference between individuals of a particular species.
variation is difference between genes and trait among individual* organism within population. mutation is change in genetic instruction I hope it helps
a gene is passed on from generations and a chromosome is just found in certain cells
A mutagen is a substance that CAUSES a mutation. Essentially, mutagens are the cause, mutations are the effect. Simple as that :)
Autosomal DNA is inherited from both parents and is found on the 22 pairs of autosomes. X DNA is inherited from both parents but is found only on the X chromosome.
the autosome do not control the sex organs . but the sex chromosome control the sex organs
No, a defective allele is not always recessive, and a normal allele is not always dominant. The relationship between alleles can be more complex and dependent on specific genetic mechanisms. Dominance and recessiveness are general terms used to describe the relationship between two alleles at a specific gene locus.
mutation means change in genetic structure..where as crossover means interchanging the genetic structure of two or more chromosomes..
Mutation Rate
One key difference is that autosomal traits are located on the autosomes (non-sex chromosomes), while sex-linked traits are located on the sex chromosomes (X or Y). This difference affects how these traits are inherited and expressed, as sex-linked traits show different inheritance patterns among males and females.
Both nonsense and missense mutations are point mutations - meaning a single base has been substituted. The difference between the two is that a missense mutation results in an amino acid being replaced with a different amino acid, whereas a nonsense mutation results in a premature stop codon.
a beneficial mutation in an animal, plant, cell or bacteria will allow it to have a better chance of survival and allow it to continue passing on its DNA in its offspring. a harmful mutation does the exact opposite it hinders the animals survival and will eventually lead it's species to extinction.