A cross between two pure breeding pea plants in which one parent produced yellow seeds and the other produced green seeds yielded 70 yellow seed F2 offspring and 30 green seed F2 offspring.  what is the degrees of freedom,  level of significance, and evaluation of X2. Do you accept or reject the hypothesis ?

Q: A wild-type fruit fly (heterozygous for gray body color and wings) mated with a black fruit fly with…

A: Need to find the recombination frequency between the two genes.

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: In drosophila , There are three genes :- Black body b , waxy wings wx and cinnabar eyes cn .While ,…

Q: In mice black fur (B) is dominant over white fur (b). What is the phenotypic percentage of offspring…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is 50% Black ; 50% White

Q: Cross C: Homozygote wild type flies (+/+) were crossed with white eye flies. for the F1 and F2…

A:

Q: at two genes are linked? Describe with an example what would you expect from two linked genes…

A: Genetics is defined as the field of biology that mainly deals with the study of genes, their…

Q: Blank #4: For song pitch, what is the genotype of a high-pitched female bird? Blank #5: What is the…

A: Blank 4 - sex-limited means a trait which is confined or visible only within one sex .  So ,…

Q: a Punnett square for a cross between a homozygous red-eyed female (XR XR ) and a white-eyed male (Xr…

A: In Drosophila, white eye colour is recessive X-linked trait while red eye colour is dominant.…

Q: The parental genotypes for a series of crosses are wild-type male fruit flies mated to females with…

A: Drosophila melanogaster is a small, common fly found near ripe and rotten fruit. It has been used…

Q: In a monohybrid cross, a pea plant with purple flowers is crossed with a pea plant with white…

A: Alternative forms of a gene are known as the alleles. Usually in diploid organism two alleles are…

Q: Erminette fowls have mostly light coloured feathers with an occasional black one, giving a flecked…

A: Answer: 1:2:1 Incomplete dominance.

Q: You have been given a virgin Drosophila female. You notice that the bristles on her thorax are much…

A:

Q: Imagine that you set up a three-point mapping cross to determine the order of three X-linked genes.…

A: This is the case of three point test cross. The crossing occurs between the heterozygous parent for…

Q: hen crossing a true breeding white mouse with a true breeding brown mouse your friend tells you she…

A: Genes are the functional unit of heredity. They contain information that is transferred from one…

Q: Why is a testcross unnecessary to determine whether a snapdragon with red flowers is homozygous or…

A: A test cross is defined as an experimental cross where one of the organisms has a recessive…

Q: In cats, S = short hair; s = long hair; XC = black coat; Xc = yellow coat; XCXc = tortoiseshell…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: In a three-point testcross the nonrecombinant progeny are A+B+ C+ and a b c. The double crossover…

A: Three point cross refers to usinh three genes to determine order and distance between genes. During…

Q: In garden peas, yellow (Y) seed color is dominant to green (y). Because yellow and green are two…

A: According to the Mendelian Laws dominance, independent assortment, and segregation, various…

Q: What would be the genotypic and phenotypic outcome if each parent was self-fertilized?

A: Genotype is refer to a gene or set of genes that leads to a single trait. Phenotype is refers to the…

Q: You are studying the inheritance pattern of hair color in troll dolls, which have XY sex…

A: Given: In troll doll, XY determination is present. Crossed a true-breeding blue-haired male with a…

Q: Imagine that you set up a three-point mapping cross to determine the order of three X-linked genes.…

A: This is the case of three point test cross. The crossing over occurs between the heterozygous…

Q: The recessive allele s causes Drosophila to have small wings, and the s+ allele causes normal wings.…

A: It can be represented as,

Q: Color blindness is a X-linked trait in human.  A cross was done and F1 showed half of the female and…

A: Colour blind inheritance is a kind of X linked recessive inheritance which means that usually males…

Q: Let us suppose that two long-winged flies were crossed and that 77 long-winged and 24 short-winged…

A: The condition where two non identical genes are present in an individual for a particular character…

Q: In the F2 generation of a homozygous yellow-seed (AA) X homozygous green-seed (aa) cross in peas,…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: In fruit flies, red eyes (R) are dominant over purple (r). Two red- eyed parents are crossed,…

A: An allele is a variant form of a given gene.  Phenotype is the observed physical traits of an…

Q: How can we solve for a X-linked trait gene problem? . If a heterozygous parent (AB/ab) is…

A: In living organisms, the differences in the specific traits are due to the presence of two versions…

Q: In fruit flies, eye shape is an X-linked trait. Round eyes (XG) are dominant to almond-shaped eyes…

A:

Q: Red eyes are dominant on fruit flies but an x-linked recessive allele will produce white eyed flies.…

A: Eye colour of Drosophila is X linked traits . This means genes for Eye colour trait is available on…

Q: In fruit flies, eye color is carried on the X chromosome. The allele for red eyes is dominant over…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: In rabbits, the homozygous CC is normal, Cc results in very long legs, and cc results in very short…

A: Given,  CC - normal leg length Cc - very long legs cc - very short legs BB - black fur Bb - brown…

Q: In snails, the maternal gene influences the phenotype of the direction of snail coiling. If D is an…

A: dd female cross with dd male..

Q: Using the link provided. Mate two flies. a male is a wild type and a female has yellow body and…

A: There are few important points about drosophila : We know that fruit flies  have XX for females and…

Q: A cross occurs between a black homozygous mouse and a white homozygous mouse. They produce gray…

A: Incomplete dominance is a deviation from Mendel's law of Dominance. In this case, neither of the…

Q: In cats, black fur color is caused by an X-linked allele; the other allele at this locus causes…

A: The question is related to X chromosome inactivation in mammalian females. One of the X chromosomes…

Q: An incompletely dominant gene controls flower petal color in carnations, where R is red and W is…

A: Incomplete dominance means neither of the allele will be able to express itself completely when…

Q: Pigeons may exhibit a checkered or plain color patterns. In a series of controlled mating the…

A: In the above question, the checkered-color pigeon is crossed with a plain colored pigeon. In this…

Q: Spotting in horses is a dominant trait.  Cross a homozygous spotted horse with a homozygous…

A: A punnet square can be defined as the tool which is used by the scientists for showing and…

Q: You are looking at a maternal effect gene that comes in 2 alleles, B (brown) is dominant and b…

A:

Q: Mate two flies. a male is a wild type and a female has yellow body and purple eyes.

A: As you asked many questions here I'm giving answer's of 3 questions  Rest please repost…

Q: Bicoid is a maternal-effect gene in the fruit fly Drosophila. Recessive mutations in bicoid can…

A: A substance that specifies different fate to the cells due to the difference in their concentration…

Q: Cross a heterozygous freckled man with a nonfreckled woman. What are the genotypes and phenotypes of…

A: Gene expression

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: Genes are the hereditary units of life. The genes can be linked or may not be linked.  When two…

Q: In cats, coat color is an X-linked trait with incomplete dominance.  Yellow coat is caused by the…

A:

Q: Mutant female: yellow body and purple eyes.  Male: Normal Use:…

A: Mutant female: yellow body and purple eyes.  Male: Normal 1. Which mutant alleles are dominant?…

Q: What are the F1 phenotypes expected from a cross between a heterozygous red-eyed female fruit fly…

A: The genotype of female parent fruit fly is given XWXw   The genotype of male parent fruit fly is…

Q: A cross was made between a plant that has blue flowers and purple seeds and a plant with white…

A: Chi square test is used to determine the differences between observed and expected data.

Q: The flowers of 4 o‟ clock plants may be red, pink or white. Reds crossed to whites produced only…

A: The observed flowers are given by:   Color Frequency Red 113 White 129 Pink 242   N = 484…

Q: In rabbits grey hair is dominant to white & black eyes are dominant to red.     -Cross 2 parents…

A: This is an example of dihybrid cross because it involves two pairs of contrasting traits at the same…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.