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Harlamova29_29 [7]
1 year ago
5

Snapdragons are a type of flower. When red snapdragons are crossed with white snapdragons the resulting flowers are all pink. A

scientist then crosses pink snapdragons with pink snapdragons. 100 offspring flowers and their colors are recorded. Of the 100 flowers counted, how many are likely pink?.
Biology
1 answer:
Akimi4 [234]1 year ago
7 0

There is a 50% probability that the flowers of a plant with pink flowers parents will have pink flowers due to incomplete dominance.

The genotypes and phenotypes that we will employ to address this issue are as follows:

RR - Red

RW - Pink

WW -  White

They would have the RW genotype as the first parent plant is pink. They would have the WW genotype because the other parent is white. When the Pink flower parents are crossed, the children that might be expected from this cross

RW x RW

The progeny will be : 1 RR (Red), 2 RW (Pink) and 1 WW (White)

This shows that there is a 50% probability that the progeny will have the RW genotype and thus the pink phenotype. Additionally, we can observe that there is a 25% likelihood that the progeny will have the WW and RR genotype and the white and Red phenotype.

Learn more about the Incomplete dominance with the help of the given link:

brainly.com/question/14053639

#SPJ4

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8 0
3 years ago
I need help with my homework that is due tomorrow and I can not find the answers in the book or online.
scoray [572]

Animal regeneration can produce whole organism or parts of organism and repair injury.

Clones today are done at genetic level by using molecular biology techniques as compared to old days when only nucleus would be removed from the egg cell and desired nucleus is inserted for cloning.

Explanation:

Regeneration is a process in which whole organism or part of which is produced from pre existing cells or group of cells and tissue. Regeneration helps in maintaining the integrity of morphology and physiology.

In lower animals like hydra and planaria whole organism is generated by existing parts. This process is termed as totipotency.

In higher animals however injury repair by mitosis is an example of regeneration.

Plant structure involved in vegetative propagation are: bulbs, rhizomes and tubers.

Vegetative propagation can be done by grafting, cutting, bulb formation, tuber, layering and tissue culture methods.

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In old days one cell would have its nucleus removed and placed into the egg and eventually organism produced

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From a single explants, large number of plants can be made.

Obtaining plants of desired trait from tissue culture is easy in short span.

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5 0
3 years ago
How do lichens alter the abiotic environments to favor the establishment of other species of plants?
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