In genetics, homozygous genes are identical alleles, while heterozygous genes have different alleles. For example, TT(same alleles) is homozygous genotype, while Tt (different alleles) is a heterozygous genotype.
A homozygous individual carries two copes of the same allele for a particular gene, while a heterozygousindividual carries one copy of an allele and a copy of another. Consider a gene with only two alleles, A and a. The possible genotypes are as follows: Homozygous: AAaa Heterozygous: Aa
I used to have problems with memorizing this when I first started taking Biology and botany and zoology classes. Its simple.
Heterozygous means different
Homozygous means same
To remember think, HOMO means SAME.
Homozygous individuals have two of the same type of alleles, be it two dominant alleles or two recessive alleles for a given trait. Heterozygous individuals have one dominant and one recessive allele for a given trait.
From a genetics standpoint, homozygous and heterozygous refer to a pair of alleles.
If both alleles are "the same", either both dominant (TT) or both recessive (tt), then they are a homozygous pair of alleles. If one is dominant and one is recessive (Tt), they are a heterozygous pair.
Homozygous means the individual has two identical alleles for a trait.
Heterozygous means they have two different alleles.
BB or bb - Homozygous
Bb - Heterozygous
XrXr or XRXR - Homozygous
XrXR - Heterozygous
A fully homozygous individual could only pass one type of allele to it's offspring because the alleles on all paired chromosomes would be the same. This individual would have a genotype like this:
AABBccEEGGFFzz (note that all pairs of alleles are either dominant or recessive. A fully heterozygous individual would have a 50% chance of passing a dominant or recessive allele because none of the alleles at each locus would match. This individual would have a genotype like this:
AaBbCcEeGgFfZz.
Few, if any, individuals could have a completely homozygous or heterozygous genotype.
A homozygous individual has both alleles for a character either in dominant or in recessive condition whereas in heterozygous individual out of two alleles for a character one is dominant and the other is recessive. for example; RR or rr is homozygous and Rr is heterozygous condition in an individual for a particular character.
A homozygous genotype signifies that the alleles for a trait are the same (aa or AA). A heterozygous genotype signifies that the alleles are different (Aa).
homozygous is where the 2 chromosomes are the same. ex- rr, RR heterozygous is where the 2 chromosomes are different. ex- Rr
A cross between a homozygous recessive and an individual of unknown genotype is called a test cross.The homozygous recessive can only pass on a recessive allele to the offspring, and so any recessive in the other parent will show up in the phenotype (detectable characteristics) of some of the offspring.
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
PAI-1 heterozygous is an inherited blood disorder from ONE parent-ONE copy of the gene. PAI-1 Homozygous is an inherited blood disorder from BOTH parents-TWO copies of the gene.
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They are the same
Homozygous is the same(purbred) and heterozygous is different(hybrid)
one is curved one is straight
nothing girl/boy
Heterozygous is when the organism has two different alleles for a traitHomozygous is when they have two of the same the sameexample of homozygous= two blue eyesexample of heterozygous= one blue eye and one green eyeHomozygous is when the combination of alleles are the same. EX: AA or BB. Heterozygous are when the combination of alleles are different. EX: Aa or Bb.
homozygous is where the 2 chromosomes are the same. ex- rr, RR heterozygous is where the 2 chromosomes are different. ex- Rr
A trait is dominant if it continues to be expressed in the heterozygous as well as the homozygous state. Recessivetraits are only expressed in the homozygous state.
A cross between a homozygous recessive and an individual of unknown genotype is called a test cross.The homozygous recessive can only pass on a recessive allele to the offspring, and so any recessive in the other parent will show up in the phenotype (detectable characteristics) of some of the offspring.
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
homozygous organism is one which possess same genes on their chromosome pair for instance C which represent colour blindness it will be present on both the x chromosomes of a female.
PAI-1 heterozygous is an inherited blood disorder from ONE parent-ONE copy of the gene. PAI-1 Homozygous is an inherited blood disorder from BOTH parents-TWO copies of the gene.
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