The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list all of the possible F1 and F2 genotypes and phenotypes from a cross involving parents that are homozygous for each trait. Express genotypes with conventional genetic abbreviations.

Q: A type of tomato (Solanum lycopersicum) produces fruit in three possible colors: red, orange, and…

A: It is seen that a single gene can code for more than one character, while in some cases many genes…

Q: A strain of plants has a mean height of 24 cmcm. A second strain of the same species from a…

A: The objective of the question is to understand the genetic inheritance pattern of plant height in…

Q: Write the genotype and phenotype that would be expected from this cross.  Write the genotype and…

A:

Q: Two unlinked genes, A and B, encode very similar enzymes involved in the production of purple flower…

A: In the given context, there are two independent genes, denoted as A and B, which are responsible for…

Q: Perform two consecutive crosses similar to those of Mendel for the following individual plants.…

A: Plants with round seeds (RR) and plants with wrinkled seeds (WR) are crossed (rr). Both parents are…

Q: A cross like this (between two individuals heterozygous for two traits) is often referred to as a…

A: A two-point cross includes two parents heterozygous for two different loci.

Q: autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Polyploidy is a condition in which there would be the presence of more than two sets of chromosomes…

Q: Explain why dead females are never found in the F1 generation no matter which parents are crossed.

A: Sex- linked traits: In an XY chromosomal system of sex determination ,both X and Y chromosomes are…

Q: Two different 30 inches plants of the same species are crossed and produced all 30 inches progeny.…

A: The characters present in an individual are due to the expression of the genes of the organism, and…

Q: In a test cross, peas of an unknown genotype are crossed with peas of a known genotype. In this…

A: Test cross is a cross between organisms of an unknown genotype and a recessive parent. It is a…

Q: All crosses involve many more than one character. So far, only one character has been examined to…

A: The cross between the two organisms to study the two contrasting characteristics or traits is called…

Q: The predicted outcome of the F1 cross is diagrammed in the Punnett square shown in the figure, where…

A: option (b) 1,2,3 have dark leaves.

Q: represent autosomal genes and X and X' represent X-linked alleles in an organism with XY sex…

A: This cross is a polyhybrid cross involving at least 4 genes with 8 alleles. The genes are placed on…

Q: Three autosomal recessive mutations in yeast, all producing the same phenotype (m1, m2, and m3), are…

A: An autosomal recessive mutation means two copies of an abnormal and defective gene must be present…

Q: In a parental cross of a ADHL disease trait, where the father is affected and the mother is…

A: ADHL disease is a autosomal dominant trait

Q: autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Autotetraploid is a genetic condition that is characterized by the presence of four times the…

Q: Fine spines (s), smooth fruit (tu), and uniform fruit color (u) are three recessive traits in…

A: Three point test cross data is given in the image. It involves crossing of parents with three traits…

Q: dihybrid cross

A: The dihybrid cross is defined as the mating between 2 organisms which are each heterozygous for 2…

Q: List the possible genotypes of the parents if a cross resulted in a F1-generation consisting of 50%…

A: monohybrid cross involves just one trait I.e color. Here the two different versions of color is used…

Q: In the pearl-millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Use the following information to answer the next question. Gregor Mendel examined the inheritance of…

A: Given: Seed coat texture is represented as S - smooth and s - wrinkled. The seed coat color is…

Q: A standard three-point mapping is conducted for recessive mutations in autosomal genes purple eye…

A: Chromosome mapping first introduce the great scientist T.H. Morgan. By the help of recombinant…

Q: A plant geneticist is examining the mode of inheritance of flower color in two closely related…

A: The objective of the question is to determine the mode of inheritance of flower color in two species…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: The trait for medium-sized leaves in iris is determined by the genetic condition PP'. Plants with…

A: The objective of the question is to predict the expected phenotypes and their numbers in the…

Q: one of the first flowers seen in the spring in some regions of the United States. The flower is…

A: Epistasis is a mechanism where an effect of a gene mutation is dependent on the presence or absence…

Q: A Pea plant with axial flower position, tall stem length, and green seed pod color is cross with…

A: Mendel studied the biology of pea plants, and he derived the inheritance of a range of…

Q: Seed color is controlled by 3 independently assorting bi-allelic genes (P, Q, R), such that…

A: The correct answer to this question: option d. 4:1

Q: Drosophila, white eyes (w) are recessive to red eyes (w+) at one locus and black body (b) is…

A: Linked genes are present on a single chromosome.  In complete linkage ,genes are present close to…

Q: In the tomato plant, red fruit (R) is dominant over green (r). Smooth fruit skin (S) is dominant…

A: We have answered only part i). Gene is the portion of the DNA that transcribes in the useful…

Q: F1 hybrid is obtained from the following cross: Parent 1: AB/AB; d/d; E/E Parent 2: ab/ab; D/D;…

A: When a trait provides simple dominance, both the homozygous dominant self and the heterozygous…

Q: Many of the color varieties of summer squash are determined by two different interacting genes A and…

A: Epigenetics is non allelic interaction between alleles present at different gene locus.

Q: In corn, pigmented aleurone (R) is dominant to colorless aleurone (r), and green plant color (G) is…

A: Given  Green (G) is dominant over yellow (g)  Pigment (R) is dominant colourless (r)  Plant one…

Q: An insect from a strain breeding for white eyes (RRww) was crossed to an insect from a strain…

A: When an organism is heterozygous, it has two distinct alleles of the same gene. For instance, pea…

Q: In a parental cross of a autosomal dominant homozygous lethal disease trait, where the father is…

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

Q: Assume that the loci are all independent and that the allele represented by the upper case letter is…

A: Assuming that the loci are all independent and that the dominant allele is represented by the upper…

Q: The eye ring color in wood ducks is under the control of a single, sex linked gene.  The dominant…

A: Sex determination - Sex determination is defined as the biological system which is used to determine…

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.