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A gene is the basic genetic unit that is used to code for something (proteins, usually). How different genes interact determines things like what you look like, etc.
Alleles are the different kinds of genes. For example, the gene for the colour of a flower in a plant could be red (dominant) or white (recessive). A flower with two copies of the red allele will be red. A flower with one red and one white allele will still be red because red is dominant to white. A flower will only be white if it has two copies of the white allele because white is recessive.
Anyone else can feel free to expand on this.
What else can I help you with?
What common trait in the rise to power of Hitler and Mussolini was they both?
Hitler and Mussolini were both thugs, who appealed to the most barbaric and uncivilized elements of their respective nations.
What is the name of the continent that contains both the smallest and largest countries in the world?
Asia
What is the chance of two white people having a black baby?
it depends on whether the parents have a black parents to have a black baby both parents must have a black parent to posses the gene to create the black baby, even so, if both parents are white it means that the "black" gene is recessive (doesn't affect there skin colour but still carry the gene), when both parents have this recessive gene it means that there a 1/4 chance of the baby being black I'm not sure if this is the exact chance but in theory it should lie around 1/4
Can you make your baby have blue eyes and blonde hair?
If you have blue eyes and blonde hair, conceiving a baby with someone who also has blue eyes and blonde hair will provide the greatest likelihood. These are both recessive genes.
What peninsula that contains the modern countries of Spain and Portugal?
Spain and Portugal are on the Iberian Peninsula.
How can you tell if someone is a carrier?
If their genotype contains both a dominant and a recessive allele for a trait.
If an offspring receives a pair of trait-controllers containing both a dominant and a recessive trait what happens to the recessive trait?
The dominant trait is shown in that organism with the possibility of carrying either the dominant or recessive gene to the next generation
When neither allele is dominant (they are both expressed)?
Both of the alleles must be recessive. The trait expressed is a recessive trait.
When a trait is not expressed when paired with a dominant allele is the definiton of?
The trait that is not expressed when paired with a dominant allele is known as a recessive trait. It is masked by the dominant trait in individuals carrying both alleles.
Trait of an organism that can be masked by the dominant form of a trait?
A recessive trait is one that is not expressed when paired with a dominant trait. It may only be visually evident when both copies of the gene carry the recessive form.
Which form of gene pair is expressed when both dominant and recessive are present?
In a situation where both a dominant and recessive allele are present in a gene pair, the dominant allele will be expressed phenotypically. The presence of a dominant allele overrides the expression of the recessive allele.
What will always hide a recessive trait?
A dominant trait will always hide a recessive trait in an individual's phenotype because the dominant allele is expressed over the recessive allele in the presence of both alleles.
Why are two recessive alleles needed for a recesssive trait to be shown?
bcoz in case of one dominant and one recessive, dominant allele will express its characters and suppresses the recessive ones. so for the expression of recessive characters both allele should be recessive.
What is difference between a dominant trait and a recessive trait?
A recessive trait is a trait that is not shown or expressed physically but is retained within the persons genes, whereas a dominant trait is a trait which opresses the recessive trait and is prodominantly shown or expressed physically. For example it is possible for two red-haired parents, both with recessive dark haired genes, to have a dark haired child. they must both have the recessive gene or the dominant gene of red - hair will be expressed in the child
How can offspring inherit a recessive trait?
An offspring can inherit a recessive trait if both of its parents are homozygous for the dominant allele.
What contains both a dominate trait and a recessive trait?
heterozygous?
What is the difference between a dominant trait and a recessive trait?
A dominate trait will most likely take over the recessive.
