Table of Contents
- 1 What if the red and white flowers were bred and the offspring flowers were both red and white what kind of dominance does this show?
- 2 When a red flower and white flower produces a red and white flower This is an example of?
- 3 What would be the offspring of two red and white flowers were crossed?
- 4 What is it called when a red flower and a white flower produce pink offspring?
- 5 Why do you think the red and white flower?
- 6 Why does crossing true breeding red and white snapdragons result in pink offspring?
- 7 What happens if you cross a pink with a red?
- 8 What is the phenotype of the parents heterozygous four o’clock flower?
- 9 How is the four o’clock flower an example of incomplete dominance?
- 10 Why did Mendel use different types of crosses?
What if the red and white flowers were bred and the offspring flowers were both red and white what kind of dominance does this show?
Codominance is when both dominant traits are expressed, therefore if white was considered dominant and red was also a dominant trait, the petals would have spots of white and red, with no pink. Polygenic inheritance is described by one characteristic influenced by multiple genes, which is not the case in this problem.
When a red flower and white flower produces a red and white flower This is an example of?
Codominance
Codominance is when the two parent phenotypes are expressed together in the offspring. An example is a white flower and a red flower producing offspring with red and white patches.
What would be the offspring of two red and white flowers were crossed?
incomplete dominance
With incomplete dominance, a cross between organisms with two different phenotypes produces offspring with a third phenotype that is a blending of the parental traits. It’s like mixing paints, red + white will make pink.
What is the result of the crossed between red flower and white flower?
When two parents mate and produce offspring, the offspring is a blend of the two parents. So, a red flower and a white flower would make a pink flower.
Why do red and white flower alleles can interact with one another?
This is important because alleles can be dominant, recessive, or codominant to each other. If the red and white alleles are codominant, then a plant with to red alleles will have red flowers, a plant with two white alleles will have white flowers, and a plant with a red allele and a white allele will have pink glowers.
What is it called when a red flower and a white flower produce pink offspring?
when a red flower and white flower produces a pink colour flower as its offspring the condition is known as incomplete dominance.
Why do you think the red and white flower?
Since diploid organisms have two copies of each chromosome, they have two of each gene. Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. We can equivalently say that the white allele for flower color is recessive to the red flower-color allele.
Why does crossing true breeding red and white snapdragons result in pink offspring?
Figure 21: A cross between a red and white snapdragon will yield 100% pink offspring. This pattern of inheritance is described as incomplete dominance, meaning that neither of the alleles is completely dominant over the other: both alleles can be seen at the same time. Red + white = pink.
What happens when you cross two pink RR flowers?
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! To produce the most red flowers,you must cross two red plants.
Why pink four o’clock flowers is an example of incomplete dominance?
He took two true-breeding flower traits (red color as dominant allele and white color as a recessive allele) of four o’clock flowers and crossed them. The results show an intermediate heterozygote with pink color flowers (none of the alleles get dominant). This situation in inheritance is known as incomplete dominance.
What happens if you cross a pink with a red?
If you cross a red –RR and a pink plant–RW, this would result in 50 percent red and 50 percent pink flowers.
What is the phenotype of the parents heterozygous four o’clock flower?
INCOMPLETE DOMINANCE: In Four O’Clock plants RED FLOWERS (R) are INCOMPLETELY DOMINANT over white (r) flowers. Heterozygous plants show a BLENDED INTERMEDIATE phenotype of PINK flowers.
How is the four o’clock flower an example of incomplete dominance?
The four o’clock flower is an example of incomplete dominance: C RC R = red, C WC W = white, and C RC W = pink. If two pink-flowered plants are crossed, what are the chances that an offspring will have pink flowers?
Why are all the offspring of a cabbage butterfly white?
The Punnett square shows the cross between cabbage butterflies. B = white and b = yellow. Why are all the offspring white? A Both parent butterflies were dominant for white color. B Only one parent butterfly carried recessive yellow traits. C Only one parent carried dominant and recessive color genes.
How to tell if a butterfly is dominant or recessive?
A Both parent butterflies were dominant for white color. B Only one parent butterfly carried recessive yellow traits. C Only one parent carried dominant and recessive color genes. D Both parent butterflies carried recessive genes for yellow color. A homozygous dominant black angelfish (BB) is crossed with a homozygous recessive gold angelfish (bb).
Why did Mendel use different types of crosses?
Mendel used several types of crosses that have since become a standard approach to genetic analysis. Suppose you have identified a trait that you suspect is uniquely inherited through pollen only, so it is passed only from the male plants to the offspring. Which type of cross would allow you to test this hypothesis?