Purple flowers are commonly said to symbolize success and even royalty, though feelings of admiration and tradition may also come through in purple flowers.
When I say a flower is purple I describe its?
Imagine that you start with a population of red, white, and blue flowers, a trait controlled by genetics. … When I say a flower is “purple,” what have I described? its phenotype. A true-breeding milk chocolate Easter bunny is crossed with a true-breeding dark chocolate Easter bunny.
What are the heterozygous genotypes?
An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.
What does it mean for a plant to be true breeding for purple flower color?
What does true breeding mean? if you cross a true breeding purple flowered plant with itself (something possible; self-fertilization) it will only produce purple flowered plants, it breeds “true” to the purple flower characteristic.
Which of the following takes place automatically within an individual garden pea plant if it is not disturbed?
Furthermore, the gametes produced by the male and female parts of the same flower, unlike those of many flowering plants, can fuse to form viable offspring. Fertilization takes place automatically within an individual flower if it is not disturbed, resulting in offspring that are the progeny of a single individual.
Are purple flowers dominant or recessive?
|Trait||Dominant Expression||Recessive Expression|
|Color of flower (P)||Purple||White|
|Form of ripe pods (I)||Inflated||Constricted|
|Color of unripe pods (G)||Green||Yellow|
|Position of flowers (A)||Axial||Terminal|
Which flower color is dominant purple or white?
Chapter 11: Intro to Genetics
|Purple flower color is dominant to white flowers in pea plants. What is the genotype of a Purple Parent if the phenotypic ratio of the offspring is 50% Purple and 50% White. Hint – do a test cross.||Pp|
What is hetero zygote?
A cell or an organism may be homozygous, heterozygous, hemizygous, or nullizygous. The nucleus, cell or organism that is described as heterozygous means that the alleles on the matching loci of homologous chromosomes are not identical. Such nucleus, cell, or organism is also referred to as a heterozygote.
What does the notation TT mean to geneticists?
The notation Tt means the heterozygous condition, wherein the homologous pair contains different alleles of a gene. … ‘Tt’ refers to the heterozygous condition with a dominant and a recessive allele and tallness being the dominant trait, it is expressed in the phenotype.
Is homozygous good or bad?
Having a high homozygosity rate is problematic for a population because it will unmask recessive deleterious alleles generated by mutations, reduce heterozygote advantage, and it is detrimental to the survival of small, endangered animal populations.
What will happen if a purple flower is crossed with a white flower?
For example, a true-breeding purple-flowering plant crossed with a true-breeding white-flowering plant always gave rise to purple-flowered hybrid plants.
How can it be explained that two purple flowers can produce a flower that is white?
Each gene can have different alleles. For example, one gene determines flower color in pea plants. Different versions of that same gene are alleles. The two different alleles here are purple flowers and white flowers.
Could two plants with purple flowers produce a plant with white flowers?
Can two plants with purple flowers produce offspring with white flowers? Yes, if both parents are heterozygous for the trait.
Can the offspring of two purple flower pea plants be white?
The way the trait appears is its phenotype. In pea plants, purebred purple flowers have a genotype with two purple alleles, which produces a phenotype of purple petals. … Since all of the offspring have the purple phenotype, this tells us that the purple allele is dominant to the white allele.
How can two peas be cross fertilized?
How can two pea plants be cross-fertilized? The male parts of flowers on one plants are removed and pollen from the other plant is introduced.