Q: What is the genetic basis of the wrinkled phenotype of pea seed?
A: Phenotype is the physical appearance of the trait which is observable.
Q: Are plants male female or both? EXPLAIN Please answer asap and your content should not be palgarised
A: The term "plant" refers to a diverse group of living organisms that all belong to the Plantae…
Q: which flower color is dominant, purple or white?
A: Each trait has two forms at the gene level. The trait which is visibly expressed or appears in the…
Q: Define stem
A: To define: To define stem and its parts
Q: Examine the impact of genetic differences on stem length?
A: The studies on the inheritance of several traits in the pea plant were conducted by the geneticist…
Q: Why is the plant life cycleknown as alternation ofgenerations?
A: Plants are non-motile living beings that are capable of producing their own food utilizing the…
Q: In what the winged pollen grains are present?
A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom…
Q: What are the advantages of breeding for disease-resistance in plants?
A: Plants resistant to disease are protected from any pathogen attack and it depends on plant genetic…
Q: In which part of the flower is the dye located?
A: Flowers are the distinctive, reproductive structure of flowering plants that attracts pollinators…
Q: What is the type of leaf bases in these figures?
A: Leaf can be defined as the organ of the plant which is responsible for the manufacturing of the…
Q: What is the developmental basis for the shorter stems of high-yielding rice and wheat?
A: High yield variety of the rice and wheat were used to increase the production per unit land. There…
Q: in which plant type is the following structure found?
A: The leaves of plants have different types of tissues specialized for different functions. There can…
Q: Describe various stem modifications.
A: Plant species can have modified stems that are suited to a particular habitat and environment. For…
Q: State the modified Stem Structure and function and give examples of each
A: Stem is long pathway that joins the roots to the leaves. Stem provides the structural support to the…
Q: What is the ratio of green to albino seedlings?
A: The ratio of bring to Albino seedlings is expected of 3 :1, it will result when the seedlings are…
Q: What is plant breeding?
A: Plants are the basic source of our food. Over 50% of the world supply of food comes from several…
Q: What are the major steps involved in Plant breeding?
A: Plant breeding is done to create desired plant types that are better suited for cultivation, give…
Q: How do class A, B, and C genes in plants work together to determine the structures of the flower?
A: ABC model was proposed to explain how homeotic genes control organ identity. The strength of the…
Q: When apical bud is removed, the next axial bud begins to grow? How.
A: Apical dominance is the phenomenon in which the principal, central stem of the plant is dominant…
Q: When the flower may be unisexual?
A: A flower refers to the reproductive part of the plant, which bears seed.
Q: What changes accompany the “resurrection” of a “resurrection plant”?
A: Plants are multicellular eukaryotic living organisms that are generally photosynthetically active.…
Q: Which of the following statements about a stamen is FALSE?
A: stamen is the part of the male reproductive system of the flower it consists of anther and filament…
Q: What are the 5 alleles for lentil seed coats?
A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…
Q: What is meant by purebred strains of plants?
A: Purebred stain means an organism always transfer a particular phenotypic characteristic to the…
Q: What would be the genotype of a heterozygous plant?
A: Every organism is a by product of both its genetic makeup and the environment.A gene can exist in…
Q: What are the main functions of the stem?
A: Stem It is one of structural axes of a vascular plant. It constitutes different types of tissue…
Q: What happens to the endosperm after applying iodine solution?
A: Endosperm It is the most common nutritive tissue for the developing embryo in angiosperms. In…
Q: Are mango seed, orange seed, and apple seed is Albuminous or exalbuminous?
A: the seed which retains endosperm till maturity is termed Albuminous seeds. for example, Most…
Q: What are the features of plant breeding?
A: Plant breeding may be defined as the process, by which the traits of plants can be altered according…
Q: Which trait is dominant for Pod color? Which trait is recessive for Seed Shape? Which trait is…
A:
Q: In a numeric pyramid to which tropic level does the base always refer?
A: Ecology is the study of interaction of organisms with one another and with the environment. Ecology…
Q: which trait for plant height is recessive, tall or dwarf?
A: Gregor Mendel uncovered the fundamental rules of heredity through his research on pea plants. He…
Q: How does the structure of a seed (ex. corn seed or bean seed) help facilitate the survival of the…
A: Plants reproduce through formation of seeds or spores. Though both seeds and spores can grow into a…
Q: How are the structures of the pistil and stamen adapted for successful fertilization?
A: Flowers are angiosperm organs that specialize in sexual reproduction. Flowers are specialized organs…
Q: What is meant by emasculation? When and why does a plant breeder employ this technique?
A: Plant fertilization is the union of male and female gametes (reproductive cells) to produce a zygote…
Q: What is the phenotype of a plant? Can you see it? Measure it? Describe it. (Hint: Could you describe…
A: Introduction Sir Gregor Mendel is known as Father of Genetics. He was the pioneer scientist who…
Q: Is this tree borderline, in or out?
A: A tree is considered "in" tree if the offset section of the tree overlaps the bole. A tree where the…
Q: What are the post-fertilization changes that occur in plants?
A: Plants undergo a variety of changes following fertilisation, including the following:
Q: What is double fertilization? B. What are the products of double fertilization? C. Explain the…
A: Reproduction is the process in which the progeny of an organism is carried forward by the process of…
Q: What are buds? What are they for?
A: Buds can be defined differently in botany and zoology. In plants, buds are the embryonic shoots…
Q: What then would be the phenotype of plant that had a genotype Tt?
A: Step 1 Phenotype is an observable external manifestation of morphological or physiological…
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- The genotype of F1 individuals in a tetrahybrid cross isAaBbCcDd. Assuming independent assortment of these fourgenes, what are the probabilities that F2 offspring will have thefollowing genotypes?(a) aabbccdd(b) AaBbCcDd(c) AABBCCDD (d) AaBBccDd(e) AaBBCCddA pure-breeding strain of squash that produced diskshaped fruits (see the accompanying illustration) wascrossed with a pure-breeding strain having long fruits.The F1 had disk fruits, but the F2 showed a new phenotype, sphere, and was composed of the followingproportions:Longlong 32 sphere 178 disk 270Sphere DiskPropose an explanation for these results, and showthe genotypes of the P, F1, and F2 generations.A snapdragon with pink petals, black anthers, and longstems was allowed to self-fertilize. From the resultingseeds, 650 adult plants were obtained. The phenotypesof these offspring are listed here.78 red long tan26 red short tan44 red long black15 red short black39 pink long tan13 pink short tan204 pink long black68 pink short black5 white long tan2 white short tan117 white long black39 white short blacka. Using P for one allele and p for the other, indicatehow flower color is inherited.b. What numbers of red : pink : white would havebeen expected among these 650 plants?c. How are anther color and stem length inherited?d. What was the genotype of the original plant?e. Do any of the three genes show independentassortment?f. For any genes that are linked, indicate the arrangements of the alleles on the homologous chromosomes in the original snapdragon, and estimate thedistance between the genes
- The genotype of F1 individuals in a tetrahybrid cross isAaBbCcDd. Assuming independent assortment of these fourgenes, what are the probabilities that F2 offspring will have thefollowing genotypes?(a) aabbccdd(b) AaBbCcDd(c) AABBCCDDMendelian GeneticsF1 Cross: Yellow, Round x Green, RoundGgWw x ggWWCharacter: Pea color & shapeUse Punnett square and fork-line method to check the F2.Show and interpret all the possible genotypes and phenotypes of the offsprings.Mendelian GeneticsF1 Cross: Tall, White, Axial x Dwarf, Violet, TerminalDdwwAA x ddWWaaCharacter: Stem height, Flower color & positionUse fork-line method to check the F2.Show and interpret all the possible genotypes and phenotypes of the offsprings.B.A.I. For A and B,1. Identify the type ofinheritance. Justifyyour answer.2. Decode the genotypesof the individuals inthe pedigree. (Useletter A forrepresentation ofalleles.)3. List down all affectedMendelian GeneticsF1 Cross: Yellow, Round x Green, Round GgWw x ggWWCharacter: Pea color & shapeUse Punnett square and fork-line method to check the F2.Show and interpret all the possible genotypes and phenotypes of the offsprings. Mendelian GeneticsF1 Cross: Tall, White, Axial x Dwarf, Violet, Terminal DdwwAA x ddWWaaCharacter: Stem height, Flower color & positionUse fork-line method to check the F2.Show and interpret all the possible genotypes and phenotypes of the offsprings. I. For A and B,1. Identify the type of inheritance. Justify your answer.2. Decode the genotypes of the individuals in the pedigree. (Use letter A for representation of alleles.)3. List down all affected individuals.B.A.
- Topic: Trihybrid Cross, Height in merigonias is determined by three unlinked genes that act additively. Each has two alleles, one compltely dominant allele(A,B or C) that makes plants taller and one recessive allele that makes plants shorter. Do the corss AaBbCc X AaBbCc. The fraction of The F1 progenty will be ? Pls explain it with more details. thanksThis problem leads you through the derivation of acorrected equation for RF in yeast tetrad analysis thattakes into account double crossover (DCO) meioses. A yeast strain that cannot grow in the absence ofthe amino acid histidine (his−) is mated with a yeaststrain that cannot grow in the absence of the aminoacid lysine (lys−). Among the 400 unordered tetrads resulting from this mating, 233 were PD, 11 wereNPD, and 156 were T.a. What types of spores are in the PD, NPD, andT tetrads?b. Are the his and lys genes linked? How do you know? c. Using the simple equation RF = 100 × [NPD +(1/2)T]/total tetrads, calculate the distance in mapunits between the his and lys genes.d. If you think about all the kinds of meiotic eventsthat could occur (refer to Fig. 5.24), you can seethat the calculation you did in part (c) may substantially underestimate RF. What kinds of meioses(NCO, SCO, or DCO) generated each of the tetradtypes in this cross? e. What incorrect assumptions does the simple RFequation…A researcher crosses two white-flowered lines ofAntirrhinum plants as follows and obtains the followingresults:pure line 1 × pure line 2↓F1 all whiteF1 × F1↓F2 131 white29 reda. Deduce the inheritance of these phenotypes; useclearly defined gene symbols. Give the genotypes ofthe parents, F1, and F2.b. Predict the outcome of crosses of the F1 with eachparental line.
- TOPIC: GENE INTERACTION AND EPISTASIS Two pure-breeding (homozygous) lines of shrubs were crossed as follows: P1 phenotype red leaves X green leaves P1 genotype ___________ _____________ F1 phenotype 100% green leaves with white flecks F1 genotype ___________ Crossing the F1s produced: F2 phenotypes F2 genotypes 123 green leaves w/ white flecks ____ 44 green leaves ____ 63 red leaves ____Pea plants with purple pollen and long-shaped pollen were crossed with each other withthe following offspring: 296 purple long-shaped pollen; 19 with purple round-shapedpollen; 27 with red long-shaped pollen; 85 with red round-shaped pollen. Explain thisbizarre outcome!The R and S loci are 35 m.u. apart. If a plant of genotyper sR Sis selfed, what progeny phenotypes will be seen and inwhat proportions?