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If someone is a heterozygous carrier of the tay-sachs gene what is their genotype?
if someone is a Heterozygous carrier of Tay-Sachs they would have to be Tt. Because TT is Homozygous.
What is the combination alleles in purebred tall of pea plant?
Most teachers will designate the dominant gene capital letter. In Mendel's experiment he crossed purebred Tall (T) with purebred short (t). He got all Tall plants as a result. Tall purebreed genotype is TT and the resulting generation was all tall by heterozygous with a genotype of Tt.
When two pea plants with Tt traits are cross pollinated what offspring will result in what?
The offspring will have a 25% chance of being TT (homozygous dominant), a 50% chance of being Tt (heterozygous), and a 25% chance of being tt (homozygous recessive). This follows Mendel's law of segregation where alleles for a trait separate during gamete formation.
How many alleles does a pea plant gamete have for the height gene?
TT or Tt
What does it mean to be a dominant gene?
Genes which take precedence over their opposite number - recessive genes. i.e. when the genetic make-up of an organism is being determined the dominant gene will out-rank any recessive gene and more often than not be the determinant one.
Do alleles have to be the same trait for example Tt or can they have two traits combined for example Tb?
In classical genetics, alleles refer to different forms of the same gene that can result in different traits. An individual would not have an allele represented as "Tb" for example - instead, they may have "T" and "b" as separate alleles that influence different traits. Each allele typically represents a specific version of a gene that contributes to a particular characteristic.
What are the possible genotypes of pea plants?
Either TT or Tt, where T stands for dominant gene for tallness and t for recessive gene.
What type of alleles are presented in a homozygous genotype?
homozygous(different gene)-Rr heterozygous(same gene)-RR,rr
Does a pea plant with the genotype TT has the same phenotype as a pea plant with genotype tt?
No because T resembles a dominant trait and t resembles a recessive trait. If it is TT, that means there are 2 dominant traits, and for TT there are 2 recessive traits.
If someone is a heterozygous carrier of the tay-sachs gene what is their genotype?
if someone is a Heterozygous carrier of Tay-Sachs they would have to be Tt. Because TT is Homozygous.
What are homologous traits?
Homologous traits are traits that are determined by a common ancestor. These are similar traits between multiple organisms. For example, hand of a human and the hand of a monkey have similar functions so they would be considered homologous traits.
What is the combination alleles in purebred tall of pea plant?
Most teachers will designate the dominant gene capital letter. In Mendel's experiment he crossed purebred Tall (T) with purebred short (t). He got all Tall plants as a result. Tall purebreed genotype is TT and the resulting generation was all tall by heterozygous with a genotype of Tt.
When two pea plants with Tt traits are cross pollinated what offspring will result in what?
The offspring will have a 25% chance of being TT (homozygous dominant), a 50% chance of being Tt (heterozygous), and a 25% chance of being tt (homozygous recessive). This follows Mendel's law of segregation where alleles for a trait separate during gamete formation.
What does a capital letter such as T represent ina punnet square?
Capital letters on Punnett Squares represent dominant genes, while lowercase letters represent recessive genes. For example, if the trait "T" is a tall gene and the trait "t" is a short gene. When you get your results (if both parents are heterozygous for tallness, Tt) you get four possible results, 1 TT (homozygous tall), 2 Tt (twice, heterozygous tall Tt), and 1 tt (homozygous short). If there is a dominant gene there, that gene will be displayed. Only if there are two recessive genes will the recessive trait be displayed.
What does being heterozygous for some genetic trait mean?
the 2 alleles of the gene for the trait are different on the 2 homologous chromosomesBeing heterozygous for a trait means that they have different alleles for a trait. For instance: Tt would be heterozygous and TT or tt would be homozygous because they are both eitehr little or big t's.it mean the gene is not pure or for example suppose a person is blood group A but actually he is having A and O; because O is recessive trait the gene express the A trait instead, making the person having blood group A.
What is the phenotypic ratio for Genotype TT Tt Tt tt?
3 : 1 ( since the given situation of segregating genotypes TT Tt Tt tt comes under monohybrid genetic combination, it will show 3 tall plants and 1 dwarf plant because gene T is dominant over t.
How many alleles does a pea plant gamete have for the height gene?
TT or Tt
