Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white). Carriers are always heterozygous.
What is the Colour of heterozygous snapdragon flower?
Snapdragon flower color is an example of incomplete dominance (neither allele is dominant). When the allele is homozygous (AA) the flowers are red and when it is homozygous (aa) the flowers are white. However, when the alleles are Aa (heterozygous), the flowers are pink.
What does the heterozygous look like?
Your genes are made of DNA. … If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.
What percentage of the offspring will have pink flowers?
The pink flower donates the r allele and produces pink flowers in 50% of the offspring. The genotype for the pink flower is Rr and the genotype for the white flower is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.
What happens when you cross two pink RW flowers?
This is an example of blending inheritance. Since neither allele is dominant, they are both expressed and produces the pink variety. … In this cross, all of the offspring would inherit one red allele and one white allele-RW and would be 100 percent pink!
Are purple flowers dominant or recessive?
Since the purple-flowered plant is true Since the purple flowered plant is true breeding, it has two dominant alleles. The genotype of the purple-flowered plant is PP. Since white flowers are recessive, the only possible genotype for a white-flowered plant is pp.