A strain of plants has a mean height of 24 cmcm. A second strain of the same species from a different geographical region also has a mean height of 24 cmcm. When plants from the two strains are crossed together, the F1F1 plants are the same height as the parent plants. However, the F2F2 generation shows a wide range of heights; the majority are like the P1P1 and F1F1 plants, but approximately 4 of 1000 are only 12 cmcm high, and about 4 of 1000 are 36 cmcm high How much does each gene contribute to plant height? Express your answer as an integer.

Q: You make a test cross between an F1 plant that is heterozygous for two dominant resistance genes (R1…

A: Linkage is the relation between the two genes on the same chromosome. Their relationship with each…

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.…

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A: Gene interaction is a type of interaction between two or more genes which results in a single…

Q: Flower color in petunias is determined by the biochemical pathway shown below: B → Orange A C_…

A:

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

Q: In a diploid plant species, an F1 with the genotype Mm Rr Ss is test crossed to a pure breeding…

A: The shuffling of genes (alleles) between chromosomes is referred to as recombination. This allows…

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

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

Q: In the model plant Arabidopsis thaliana, the following alleles were used in a cross: T = presence of…

A: a) To find: The appearance of the F1

Q: Stem length in plants is controlled by two CODOMINANT alleles of one autosomal - one allele, B, adds…

A: 1-If the breeder starts crossing with two heterozygotes (Bb), then their initial lenghts would be…

Q: The fungus Melampsora lini causes a disease known as flax rust.Different strains of M. lini cause…

A: The inheritance pattern is a manner in which a gene is inherited by an offspring from its parents.…

Q: A) Describe the data you collect from the Purple 1 x Purple 2 cross. Predict the genotype of each of…

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Q: A research team genotyped hundreds of families affected by haemophilia. Among those families, they…

A: RFLP is found on X chromosome and it is a sex-linked recessive disorder. The daughter who inherited…

Q: h se g. +se+ + se g. ++g. h se + + + + h+g. h++ TOTAL Oh; 16.4 O se; 7.1 is the gene in the middle…

A: Genetic linkage is the tendency for genes located close to each other on the same chromosome to be…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: Matings within pure-breeding (or true-breeding) lines produce offspring carrying specific parental…

Q: Two different genes control the expression of kernel colour in Mexican black corn: black pigment…

A: A person expressing a dominant phenotype may have two copies of the dominant allele or single copy…

Q: In a study of several characters, it was found that when di-hybrid crosses were made, several genes…

A: A genetic map is a chromosome map that depicts the relative positions of genes and other significant…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: True breed plants are defined as having identical alleles, which constitute their genotype and give…

Q: *Genes A and B are linked. Individual plants homozygous for different combinations of these genes…

A: Introduction : In genetics we all know that the genes which are linked are supposed to be larger in…

Q: There are two genetic loci determiningthe mating type, locus A with 288 alleles and locus B with 81…

A: The objective of the question is to understand the mating compatibility of Schizophyllum commune…

Q: three recessive genes a, b, and c in the model plant Arabidopsis are found to be linked on…

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Q: The height of the seed head in wheat at maturity is determined by several genes. In one variety, the…

A: Given: Plants from the 9-inch variety were crossed to plants from the 33-inch variety.  Among the…

Q: The trait of medium-sized leaves in iris is determined by the heterozygous genotype TRIT. Plants…

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

Q: Two linked loci have a recombination frequency of 5%. A series of crosses is performed. The P…

A: Given information The recombination frequency is 5%. The P generation involves an individual that…

Q: A strain of plants has a mean height of 24 cm. A second strain ofthe same species from a different…

A: The biochemical substance that is carried from the preceding generation to the succeeding generation…

Q: The trait of medium-sized leaves in iris is determined by the heterozygous genotyp Rir. Plants with…

A: Inheritance patterns are of different type’s   Mendelian inheritance, incomplete dominance,…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: Genes are the units of heredity that carry coded genetic information in the form of nucleotide…

Q: You have already localized the genes to the same chromosome by deletion mapping, and now decide that…

A: A test cross is one that involves cross between an individual (with unknown genotype) with a…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: in polygenic inheritance, the F2 hybrids are interbred and the resultant progeny are seen to produce…

Q: You successfully isolate an hsf2/hsf2; hsf3/hsf3 double mutant stock. You cross this plant to an…

A: 40 plants

Angiosperm Reproduction

The process of sexual reproduction in flowering plants is known as angiosperm reproduction. In flowering plants, reproduction begins with pollination, or the transfer of male gametes (pollen) from the male reproductive organ (anther) to the female reproductive organ (pistil), and ends with fertilization of the female gametes (egg), which produces a zygote, which then grows to become a mature plant.