What will be the expected phenotypic class distribution if only two genes are linked?

Q: In a testcross for two genes, what types of gametes are produced with (a) complete linkage, (b)…

A: Testcross is a breeding of an individual with homozygous recessive individual. The aim is to…

Q: What causes   Allopolyploidy?

A: Polyploidy is a phenomenon of having more than two sets of chromosomes. It occurs due to failure of…

Q: assuming independent assortment, what phenotypic ratio would you see if an individual with the…

A: In the given case, the allele 'R' is dominant over 'r' and allele 'G' is dominant over 'g'. If an…

Q: is image How many different phenotypic categories do you observe in the resulting progeny? Which…

A: Phenotype is the external appearance of an organism.

Q: There are some members of the genus Datura that are trisomic for the chromosome set, which carries…

A: The cross between P+P+P X P+P is done in step 2

Q: If a corn plant was heterozygous for kernel color and seed shape,what would be the genotype of the…

A: Genotype is the genetic make up of an individual that is produced according to the allele…

Q: What is a monohybrid cross, and what are the genotypic andphenotypic ratios expected in the…

A: BASIC INFORMATION USED IN GENETICS  HETEROZYGOUS - Every gene has two characters one being the…

Q: What are the possible phenotypes (and their probabilities)?

A: Dihybrid cross It is mating between two organisms that are identically hybrid for two traits. This…

Q: Consider these two crosses and assume that independent segregation is exhibited by all gene pairs:…

A:

Q: What will be the phenotypic ratio for a heterozygous cross between Pp and Pp?

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

Q: In the dihybrid cross AaBb ´ aabb, what proportion of individuals are expected to be homozygotic for…

A: Since we are entitled to answer only one question at a time, I would be answering the ques. 1. If…

Q: . What is the basis for the green-and-white color variegation in the leaves of Mirabilis? If the…

A: Mirabilis jalapa is an ornamental plant which is also known by the name "4'o clock plant".

Q: Consider this cross in pea plants: Tt Rr yy Aa × Tt rr Yy Aa, whereT = tall, t = dwarf, R = round, r…

A: A dihybrid cross is an experimental mating procedure where two organisms possess distinct traits. A…

Q: In certain plants, tall (T) is dominant to short (t). If a heterozygous plant is crossed with a…

A: Step 1 Homozygous is an individual having a similar mendelian factor or copies of the same alleles.…

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 a cross between AaBbCcDDee x aaBbCcddEe, what is the probability of  obtaining the following?…

A: Product rule is used in this case. The product of probability of each gene is done to find the…

Q: If we perform the following cross, AABB x AaBb, how many unique haploid gamete genotypes are…

A: We have,  Genotypes of parents - AABb and AaBb Possible gametes of parents of genotype AABb - AB and…

Q: Is it possible to cross two different pure-breeding yellow zucchini strains and obtain all green…

A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…

Q: What would be the phenotypic ratio of this cross?

A: TT      ×        tt Tt   Tt       Tt  Tt

Q: What is the phenotypic ratio of a monohybrid cross?

A: Monohybrid cross is a cross in which there are found involvement of single gene for a single trait.…

Q: In a dihybrid cross of two pea plants, one homozygous for two dominant traits and the other…

A: A cross to made to predict the traits of the offsprings in relation to their parents. A dihybrid…

Q: A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What are the…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Using the Dihybrid Cross, Give the Total Number and Types of Gametes formed of MmNnOoPPQQRrssTtQq.…

A: Dihybrid cross is the cross between 2 individuals who differ in two traits observed by 2 distinct…

Q: A common houseplant called a pothos sometimes have streaks of yellow on their green leaves. Assuming…

A: A gene is a unit of genetic material and alleles are the alternative form of genes present on the…

Q: In the self of a polygenic trihybrid R1/r1 ; R2/r2 ; R3/r3,use the product and sum rules to…

A: When a self cross takes place between the polygenic hybrid, then: The probability in which only one…

Q: Explain, with the aid of a drawing, how a dicentric bridge is produced when crossing over takes…

A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…

Q: The fly with vestigial wings is crossed with the fly with normal wings shown in the upper-right…

A: The length of wings in Drosophila is determined by the wing length gene. There are two distinct…

Q: What is the phenotypic ratio of the offspring of heterozygous parents in a dihybrid cross?

A: For a dihybrid cross, there should be two traits involved while crossing. Phenotypic ratio is the…

Q: What is the predicted phenotypic outcome of a dihybrid cross and a dihybrid text cross? Why?

A: Let a round yellow pea be dominant and wrinkled green pea be recessive.

Q: What is the % probability of a heterozygous tall pea plant and a short pea plant producing a short…

A: heterozygous pea plant, has two alleles namely T (tall) and t (small). where as small pea plant is…

Q: In garden pea plants, axial flower location is dominant (A) to terminal flower location (a). If a…

A: In the given question, we are given with two traits resulting from a gene controlling flower…

Q: For pea plants with the following genotypes, list the possible gametes that the plant can make:A. TT…

A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…

Q: How many gamete possibilities are there from a pea plant that is heterozygous for seed color, seed…

A: In the formation of gametes, the allelic genes separate and pass into different gametes and thus the…

Q: Is this pedigree consistent with extranuclear inheritance of the shaded characteristic? Select one:…

A: If the inheritance is governed by cytoplasmic factor or genes then this type of inheritance is…

Q: In a trihybrid cross of a tall, purple-flowered pea plant with round seeds (TtPpRr) with a tall,…

A: The cross that occurs between the organisms that are heterozygous for three pairs of genes is termed…

Q: what is the true breeding means and what a test cross is?

A: The true breeding means when the organisms produce offspring with the same phenotype as their own.…

Q: With complete dominance, what are the expected F2 genotypic and phenotypic in a dihybrid cross?

A: Dihybrid cross is a cross in which inheritance of two genes are studied at the same time.Its…

Q: What are the steps to get R in the middle and why? How did you obtain the heterozygous parent?

A: The genes are located on the chromosome. If many genes are located on the same chromosome then they…

Q: In a cross between a 29cm plant and a 20cm plant what would be the genotypes giving the smallest…

A: Height in plants is a polygenic trait, in which one phenotype is influenced by more than one gene.…

Q: Which poodle could be heterozygous: the one with the black coat or the one with the brown coat?

A: A gene region where there are two distinct alleles present. One normal allele and one mutated…

Q: In pea plants, yellow seeds are dominant over green seeds. What would be the expected PHENOTYPIC…

A: When one parent contributes a dominant allele and the other parent contributes the corresponding…

Q: Assume that a TRlhybrid cross is made in which the genes' loci are autosomal, independently…

A: We would expect 8 different phenotypes if a trihybrid cross is made in which the gene loci are…

Q: what will be the offspring if the white grapefruit tree is heterozygous?

A: Grapefruit trees can be white or pink depending on the species. The white grapefruit tree is…

Q: What is the probability that the sister with normal coloration is a carrierof the albinism allele?

A: Albinism is a congenital disorder characterized in humans by the complete or partial absence of…

Q: Is this pedigree consistent with extranuclear inheritance of the shaded characteristic?

A: Answer: Extranuclear inheritance  : Extranuclear genes are the genes which found outside the nucleus…

Q: How many different gamete genotypes are produced in a four-gene cross with incomplete genetic…

A: If the linkage is complete, there should be parental combinations only and no recombination.…

Q: Show a cross between two heterozygous green pod and a homozygous yellow pad.

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If two genes on the same chromosome exhibit complete linkage, what is the expected F2 phenotypic…

A: ANSWER;- Here each parent produces 2 types of gametes, a+b+, and ab, giving the simple Mendelian…

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.