Having 2 different alleles means to have a pair of a type of gene i.e. for e.g. in sweet pea
there are 2 gene for seed shape, folower colour, flower position, pod shape, pod colour and are on homologous choromose and are knwon as allele of each other
"Homozygous" refers to an individual having two identical alleles for a particular gene. This can either be two dominant alleles (homozygous dominant) or two recessive alleles (homozygous recessive). Homozygosity increases the likelihood of genetic traits being expressed.
this makes no scientific sense. A gene (which determines a phenotypic trait) can only contain 2 alleles. However codominace allows for multiple alleles to be chosen from, but only 2 picked for a gene. Also, if multiple genes determine a phenotypic trait that's polygenic inheritance.
Homozygous recessive: is when the genes are both recessive Homozygous dominant: is when the genes are both dominant (traits show) Heterozygous dominant: is when one gene is dominant and one is recessive (traits show) Heterozygous recessive: is the same as heterozygous dominant but the dominant genes are inactive
Multiple alleles are "the existence of more than two alleles (versions of the gene) for a genetic traits. Polygenic traits are "[characteristics of organisms that are] influenced by several genes." So multiple alleles are more than two alleles for one trait, and polygenic traits are one trait that is influenced by multiple genes. This information came from my biology textbook, "Biology: Principles and Explorations" by Holt, Rinehart, and Winston.
Genes can exist in different forms called alleles, which are variations of a gene. Alleles can be dominant or recessive, influencing the expression of traits in an organism. Additionally, genes can undergo mutations, such as insertions, deletions, or substitutions, leading to genetic diversity within a population.
When two alleles differ from each other, such as Tt, it is called heterozygous, hetero meaning different. When alleles are the same (TT) it is called homozygous, homo meaning same.
A heterozygous has 2 different alleles for a trait.
A heterozygous woman with two genes (each having two alleles) can produce four different types of gametes due to the random assortment of alleles during meiosis.
A homozygous genotype refers to having two identical alleles for a particular gene. It can be either homozygous dominant (two dominant alleles, such as AA) or homozygous recessive (two recessive alleles, such as aa).
Genes
alleles
Mendel used the term hybrid when referring to a trait with two unlike alleles.
"Homozygous" refers to an individual having two identical alleles for a particular gene. This can either be two dominant alleles (homozygous dominant) or two recessive alleles (homozygous recessive). Homozygosity increases the likelihood of genetic traits being expressed.
this makes no scientific sense. A gene (which determines a phenotypic trait) can only contain 2 alleles. However codominace allows for multiple alleles to be chosen from, but only 2 picked for a gene. Also, if multiple genes determine a phenotypic trait that's polygenic inheritance.
Diploid organisms, like humans, have two alternate like alleles for every gene.
When the alleles present for a trait are the same, the genes are called homozygous. This means that both alleles for a particular gene are identical. Homozygous individuals can have either two dominant alleles (homozygous dominant) or two recessive alleles (homozygous recessive).
Homozygous recessive: is when the genes are both recessive Homozygous dominant: is when the genes are both dominant (traits show) Heterozygous dominant: is when one gene is dominant and one is recessive (traits show) Heterozygous recessive: is the same as heterozygous dominant but the dominant genes are inactive