Question

An experiment to determine the inheritance of flower color crossed two plants. A true breeding plant...

An experiment to determine the inheritance of flower color crossed two plants. A true breeding plant with purple flowers is crossed with a true breeding plant with white flowers. All the offspring (F1 generation) are white. The F1 plants are self-fertilized and produce the following progeny.

310 white flowered plants

90 plants with purple flowers.

A. What are your assumptions for this problem. What is your hypothesis?

B. Use a Chi-square test to determine whether those numbers fit a Mendelian pattern of inheritance.

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

My assumptions for this problem are:

1. White colour flower is homogygous dominant trait because it appeared in F1 generation over purple colour.

2. Purple colour flower possesses homogygous recessive traits because it was suppressd by white coloured flowers in F1 generation..

using a Chi square test, whe find that the ratio of white flowered and purple flowered plants should be 3:1 respectively. So those numbers that is 310 white flowered and 90 plants with purple flowers fit a Mendellian pattern of inheritance.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Assume that there is a single gene, w, that determines flower color in runner beans....
1. Assume that there is a single gene, w, that determines flower color in runner beans. There are two alleles for this gene: w1 and w2 . The w1 homozygotes have white flowers and w2 homozygotes have red flowers. True-breeding white-flowered plants are crossed to true-breeding red-flowered plants, producing all pink flowered F1 progeny. Female flowers of the F1 progeny are then fertilized by pollen from true-breeding white-flowered plants. What proportion of the progeny from this last cross will have...
A species of plant is discovered in which individual plants produce either white or purple flowers....
A species of plant is discovered in which individual plants produce either white or purple flowers. True breeding plants that have short stems with white flowers are crossed with true breeding plants that have tall stems and purple flowers. The resulting offspring all have tall stems with purple flowers. When one of these tall, purple-flowered offspring is crossed with a short, white-flowered plant, plants with the following characteristics were obtained in equal proportions. White flowers on tall stems Purple flowers...
Part A)i n plants, purple flower color is dominant to white flowers color. You crossed a...
Part A)i n plants, purple flower color is dominant to white flowers color. You crossed a white flowering plant with a purple flowering plant. Out of 236 plants in the offspring, 114 had white flowers and the other 122 had purple flowers. What were the genotypes of the parent plants? A. One plant was heterozygous white and the other heterozygous purple B. Both plants are homozygous C.Both plants are heterozygous D. One plant was homozygous white and the other heterozygous...
When Mendel crossed pea plants that were true breeding for purple flowers (PP) with pea plants...
When Mendel crossed pea plants that were true breeding for purple flowers (PP) with pea plants with white flowers (pp), all of the offspring had purple flowers.  When he let these offspring self-fertilize, he got purple and white second generation (F2) offspring in a phenotypic ratio of 3:1. But, we know that the genotypic ratio is really 1:2:1.  Why? (1 point)
You are studying inheritance of various characters in marigolds including flower color (purple or blue), seed...
You are studying inheritance of various characters in marigolds including flower color (purple or blue), seed color (white or brown) and seed shape (round or oblong). When you cross a plant that is true breeding for blue flowers, white and oblong seeds with a plant that is true breeding for purple flowers, brown and round seeds you find that all of the offspring have blue flowers, and round, white seeds. You then cross these F1 plants with each other and...
In the datura plant, purple flower color is controlled by a dominant allele P. White flowers...
In the datura plant, purple flower color is controlled by a dominant allele P. White flowers are found in plants homozygous for the recessive allele p. A heterozygous purple-flowered plant is self-fertilized by its own pollen and produces five seeds. a) Probability than any one seed will grow into a white-flowered plant? b) Probability that at least two of the five seeds will grow into white-flowered plants?
A true breeding tall purple pea plant is crossed with a true breeding short white pea...
A true breeding tall purple pea plant is crossed with a true breeding short white pea plant. Purple and tall are dominant. What is the genotype and phenotype of the F1 offspring. If two of the F1 offspring are crossed, what will be the phenotypes and genotypes of the F2 offspring? A tall purple pea plant is crossed with a short white pea plant. What will the phenotype(s) and genotype(s) of the F1 offspring be?
In snapdragons, the plant height gene and the flower color genes are located on different chromosomes....
In snapdragons, the plant height gene and the flower color genes are located on different chromosomes. Tall (T) is dominant to dwarf (t). Red flowers (FR) are incompletely dominant to white (FW), with the hybrid being pink. A homozygous tall-white is crossed to a homozygous dwarf-red,. The F1 plants are then self-fertilized to produce an F2 generation. a. What is the genotype and phenotype of the F1? b. What proportion of the F2 will have pink flowers? c. What proportion...
"Suppose flower color in a plant is determined by one gene with two alleles, B and...
"Suppose flower color in a plant is determined by one gene with two alleles, B and b, with incomplete dominance. B specifies blue pigment molecules and b specifies no pigment molecules. A darker blue-flowered plant and a lighter blue-flowered plant are crossed. What is the expected frequency of plants with white flowers among their offspring?"
Tired of watering his garden, your instructor is attempting to grow desert plants. One such plant...
Tired of watering his garden, your instructor is attempting to grow desert plants. One such plant is Indian paintbrush. A yellow variant has shown up, and we would like to determine if this variant is a Mendelian trait. We have taken a pure breeding red plant and crossed it with a a pure breeding yellow plant. The resulting F1 plants were red The F1 were selfed and the F2 data is presented below: Red Flowers 266 Yellow Flowers 69 Perform...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT