BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 1S
z1. Create a Punnett square for the following crosses and use this to predict
a. A monohybrid cross between individuals with the genotype Aa and Aa
b. A dihybrid cross between two individuals with the genotype AaBb
c. A dihybrid cross between individuals with the genotype AaBb and aabb
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
. An allele A that is not lethal when homozygous causes rats to have yellow coats. The allele R of a separate gene that assorts independently produces a black coat. Together, A and R produce a grayish coat, whereas a and r produce a white coat. A gray male is crossed with a yel-low female, and the F1 is 3 8 yellow, 3 8 gray, 1 8 black, and 1 8 white. Determine the genotypes of the parents.
A. Theoretical: The Punnett square will be used to examine the theoretical outcome of possible monohybrid
crosses.
1. The first cross is between a Homozygous dominant parent (PP), and a Homozygous recessive or just simply
say recessive parent (pp):
a. Fill in the Punnett square. Each box represents a genotype possibility for an offspring.
b. Place the allele donated by each parent in the corresponding box. Now list the possible genotypes and
their corresponding phenotype.
c. If an individual's genotype is heterozygous, the dominant trait will be expressed in the phenotype.
Give the percent possible for the phenotypes.
P
Genotype:
p
Phenotype:
Phenotype % probable:
1| Page
2. Cross between a Homozygous dominant parent (PP) and a Heterozygous parent (Pp). Fill in as in step one.
3. Cross between a Heterozygous parent (Pp), and another Heterozygous parent (Pp). Fill-in as before.
4. Test cross: A test cross is between a recessive parent (pp), and a Heterozygous parent (Pp). Again, fill-in…
A. Identify the most likely inheritance pattern in the pedigree below. B. What are the genotypes of individuals II-3 and Il-4? Use any letter
for your example.
1
2
II
1
2
3
4 5
II
1
2 3 4 5 6
Chapter 12 Solutions
BIOLOGY
Ch. 12.1 - Prob. 1LOCh. 12.1 - Explain the advantages of Mendels experimental...Ch. 12.2 - Evaluate the outcome of a monohybrid cross.Ch. 12.2 - Explain Mendels Principle of Segregation.Ch. 12.2 - Compare the segregation of alleles with the...Ch. 12.3 - Evaluate the outcome of a dihybrid cross.Ch. 12.3 - Explain Mendels Principle of Independent...Ch. 12.3 - Compare the segregation of alleles for different...Ch. 12.4 - Prob. 1LOCh. 12.4 - Prob. 2LO
Ch. 12.5 - Interpret data from testcrosses to infer unknown...Ch. 12.6 - Describe how assumptions in Mendels model result...Ch. 12.6 - Prob. 2LOCh. 12.6 - Explain the genetic basis for observed alterations...Ch. 12 - Inquiry question What confounding problems could...Ch. 12 - Prob. 2IQCh. 12 - Prob. 1DACh. 12 - Prob. 2DACh. 12 - Prob. 3DACh. 12 - What property distinguished Mendels investigation...Ch. 12 - The F1 generation of the monohybrid cross purple...Ch. 12 - The F1 plants from the previous question are...Ch. 12 - In a cross of Aa Bb cc X Aa Bb Cc, what is the...Ch. 12 - An organisms __________ is/are determined by its...Ch. 12 - Phenotypes like height in humans, which show a...Ch. 12 - Japanese four oclocks that are red and tall are...Ch. 12 - If the two genes in the previous question showed...Ch. 12 - What is the probability of obtaining an individual...Ch. 12 - Prob. 4ACh. 12 - Prob. 5ACh. 12 - Mendels model assumes that each trait is...Ch. 12 - z1. Create a Punnett square for the following...Ch. 12 - Explain how the events of meiosis can explain both...Ch. 12 - Prob. 3SCh. 12 - In mammals, a variety of genes affect coat color....
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 1. Genes A and E are independent. Two individuals with the genotypes AaEe x aaEe are crossed (upper case = dominant, lowercase = recessive). a. Draw your Punnett square(s) in the space below. b. On each line, show your calculations and the final answer. ie 1/2 x 1/2 = 1/4 What is the probability of these two individuals having the following: an offspring with the phenotype aE ? an offspring that is heterozygous for both traits? an male offspring with the genotype AaEE ?arrow_forwardWhat could be the genotypic and phenotypic ratios for a typical mendelian trait showed in the picture?arrow_forwardIn the example below, crossing you left thumb over your right thumb is dominant T to crossing your right over left recessive t. Identify the genotype of the individual shown below: OShutterstock / robynleig O A. homozygous dominant (TT) O B. heterozygous dominant (Tt) or homozygous dominant (TT) OC. homozygous recessive (tt) O D. Cannot be determined from information providedarrow_forward
- Snapdragons (a type of flower) are incompletely dominant for color; they have phenotypes red, pink, or white. The red flowers are homozygous dominant, the white flowers are homozygous recessive, and the pink flowers are heterozygous. Give the genotypes for each of the phenotypes, using the letters “R" and "w" for alleles. c. White snapdragon a. Red snapdragon Genotype: b. Pink snapdragon Genotype: Genotype: Show genetic crosses between the following snapdragon parents, using the Punnett squares provided, and record the genotypic and phenotypic ratios. a. Pink x pink b. red x white c. pink x white Genotypic ratio: Genotypic ratio: Genotypic ratio: Phenotypic ratio: Phenotypic ratio: Phenotypic ratio:arrow_forward(please explain clearly and provide correct answer)arrow_forward[Type here] 8. Using the letter "A", write the genotype(s) for a homozygous trait. a. Write the genotype(s) for a heterozygous trait. 9. Using the letter "B", write the genotype(s) for a dominant trait. a. Write the genotype(s) for a recessive trait. Complete the Punnett Square using the information provided. Grey fur is dominant to white fur. Red eyes are dominant to black eyes. F = Grey Fur f = White Fur E = Red eyes 10. The bunny is heterozygous for gray fur. Write her genotype. braM e = Blaarrow_forward
- A. Part 1: F1 Generation Yellow Sampaguita- Homozygous recessive (cc) White Sampaguita- Homozygous dominant (CC) a. With the given sampaguita flowers, you will be crossing these two samples and identify the offspring using a punnet square. Indicate the ratio between each offspring B. Part 2: F2 generation a. With the results you have from Part 1 and using a punnet square, what are the offspring of your heterozygous parents to identify the F2 generation. Indicate the ratio between each offspring. Note: Please provide the punnet square and a detailed explanationarrow_forwardBronze coloured turkey is controlled by a dominant allele, B. Red coloured turkey is homozygous for a recessive allele bb. Dominant gene N produce normal feather and recessive genotype produce ‘hairy’ feather nn. In a cross between homozygous bronzed coloured turkey with ‘hairy’ feather and homozygous red coloured turkey with normal feather. What are the ratios of F2 progeny with Bbnn genotypes? (I want to check if what i'm doing is correct)arrow_forwardPurple flowers are dominant to white flowers. Identify the phenotypefor the following genotype Ff, FF, ff and determine if the genotype is heterozygous or homozygous. * For each row, you should select two columns. Purple flowers White flowers Heterozygous Homozygous Ff FF ff Brown eyes are dominant to blue eyes. Identify the phenotype for the following genotype BB, Bb, bb and determine if the genotype is heterozygous or homozygous. * 口 ロ口arrow_forward
- Incomplete Dominance: 1) On the planet Iota Geminorum IV there exists a small hairy animal known as a tribble. It comes in three colors blue, red, and purple. This trait is controlled by a single locus with incompletre dominance. A homozygous CBCB is blue, a homozygous CRCR is red, and a heterozygous CBCR is purple. a. What would be the genotypes and phenotypes of the offspring if a blue tribble were crossed with a red one? b. If the offspring in #1 were crossed what would the genotypic and phenotypic ratios be of this generation?arrow_forwardThe colors of chicken feathers follow a codominant pattern. Both Black (B) and White (W) feathers are dominant phenotypes while checkered (BW) is the heterozygous phenotype. Show a cross between 2 checkered chickens. 1. P1: 2. Punnett Square: 3. Genotype symbols: 4. Genotype in words: 5. Genotypic ratio: 6. Genotypic %: 7. Phenotype symbols: 8. Phenotype in words: 9. Phenotypic ratio: 10. Phenotypic %:arrow_forward. The genotype r/r ; p/p gives fowl a single comb, R/− ; P/−gives a walnut comb, r/r ; P/− gives a pea comb, andR/− ; p/p gives a rose comb (see the illustrations).Assume independent assortment.Single Walnut Pea Rosea. What comb types will appear in the F1 and in the F2and in what proportions if single-combed birds arecrossed with birds of a true-breeding walnut strain?b. What are the genotypes of the parents in a walnut ×rose mating from which the progeny are 38 rose, 38 walnut,18 pea, and 18 single?c. What are the genotypes of the parents in a walnut ×rose mating from which all the progeny are walnut?d. How many genotypes produce a walnut phenotype?Write them outarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
How to solve genetics probability problems; Author: Shomu's Biology;https://www.youtube.com/watch?v=R0yjfb1ooUs;License: Standard YouTube License, CC-BY
Beyond Mendelian Genetics: Complex Patterns of Inheritance; Author: Professor Dave Explains;https://www.youtube.com/watch?v=-EmvmBuK-B8;License: Standard YouTube License, CC-BY