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Generally, if the parents are heterozygous and one allele is dominant over the other
there are only 2 phenotypes and 3 genotypes. Parents Aa can produce AA, Aa and aa
offspring.
If the heterozygous individuals have an intermediate phenotype, then three genotypes and 3 phenotypes are possible.
If 2 traits are being studied using heterozygous parents AaBb then the possible
Genotypes are AABB, AABb, AAbb, AaBB, AaBb, Aabb, aaBb, aaBB, aabb which is nine genotypes. But there are 4 phenotypes.
AABB AABb AaBB AaBb are phenotypically the same.
aaBb, aaBB are phenotypically the same.
Aabb, AAbb are phenotypically the same.
aabb
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∙ 11y ago
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How can the farmer determine if his red tomatoes are pure or hybrid?
do a testcross. if they are pure, offsprings will be all red. if they are hybrids, half of the offsprings will be yellow.
How does codominance change the offsprings phenotype?
Codominance is contrary to typical mendelian genetics, in that no one allele is dominant to the other, so they are both expressed equally. The important part is that the offspring with express each allele independently, such as having spots of one color, then spots of another color, instead of blending the two colors, which would be incomplete dominance. So codominance changes the offsprings phenotype by making the offspring express both alleles equally, yet each allele's expression is separate/distinguishable, not blended.
What is the result of a cross between homozygous red and homozygous whitw four o'clock flowers?
Red color being governed by a dominant gene, all offsprings from this cross will have red flowers.
How can all offsprings from two parents be tall?
Heterozygoes dominant or Homozygoes dominant.
What is the phenotype of a heterozygous four o'clock flowers?
White-flowered, red-flowered, and pink-flowered.
In sweet pea plant R is the allele for red flowers and r is the allele for white flowers a. If an RR plant and an rr plant are crossed what will be the outcome of their offsprings?
All of the offspring will be red, since each of the four offspring receive the dominant red allele (R). Therefore, the offspring will all have the genotype Rr and a phenotype of red.
To produce pea plat that only display the recessive phenitypw of a trait what must be the genotypes of the parent plats?
To produce a pea plant that only displays the recessive phenotype both of the parents must also have the recessive phenotype. In a four square, if one parent displays the recessive phenotype while the other has the dominant phenotype, one of every four offspring should theoretically receive the recessive phenotype as well, but if you want all offspring to be recessive, both parents must also be recessive. (tt)
Is it possible for two alleles to produce four phenotype?
yes
What is the phenotype of a hetozygous four o clock flower?
R'R'
How can the farmer determine if his red tomatoes are pure or hybrid?
do a testcross. if they are pure, offsprings will be all red. if they are hybrids, half of the offsprings will be yellow.
How are the genotype and phenotype of parents related to the genotype and phenotypes of offsprings?
The parents can pass on only the alleles of their genotypes to their offspring. Therefore, the offspring genotypes and phenotypes are dependent solely upon the alleles inherited from the parents.
What the offsprings physically will look like?
Although the question should be stated more clearly, I will guess that you are asking about phenotype, or the physical appearance of an individual possessing a certain genotype.
How does codominance change the offsprings phenotype?
Codominance is contrary to typical mendelian genetics, in that no one allele is dominant to the other, so they are both expressed equally. The important part is that the offspring with express each allele independently, such as having spots of one color, then spots of another color, instead of blending the two colors, which would be incomplete dominance. So codominance changes the offsprings phenotype by making the offspring express both alleles equally, yet each allele's expression is separate/distinguishable, not blended.
How do dominant and recessive alleles affect pheno type?
An allele can effect the phenotype of an organism by its dominance or recessiveness. If two dominant alleles are crossed the offsprings will carry the dominant trait of the alleles. If a dominant allele is crossed with recessive allele the phenotype of the offsprings will be of that of the dominant allele. And if two recessive alleles are crossed the phenotype of their offsprings will carry the reccesive trait.
What is the result of a cross between homozygous red and homozygous whitw four o'clock flowers?
Red color being governed by a dominant gene, all offsprings from this cross will have red flowers.
What we call the observable expression of genes present in an organism?
When genes are expressed, the result is called phenotype. What is actually in all the genes (some are recessive) is called the genotype.
How many offsprings do dolphind usually have?
how many offsprings do dolphins usually have
