There is a possibility that gene flow due to cross-pollination may occur between crop plants genetically modified to be herbicide resistant and neighboring wild plants. Why would this be a problem?
Q: Why is it important to preserve the genetic diversity of crops and their landraces and wild…
A: Genetic diversity is the wide variety of different traits passed on from ancestors in a species. The…
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A: NOTE:- As you have posted a question with multiple sub-parts, we will answer the first part for you,…
Q: Why is hybrid seed so expensive to produce?
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Q: Mention the scientific term for the type of pollination which ensures Genetic Recombination.
A: The term pollination will refer to the transfer, movement, and deposition of pollen grains on the…
Q: What is cross-pollination?
A: Pollination is defined as the transfer of pollen grains from the anther of a flower to the stigma of…
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A: Answer is b.They have same same alleles but express different proteins.
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A: A cross between parents that are heterozygous for two loci is called a dihybrid cross.
Q: What are self pollination and cross pollination?
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Q: Give at least three reasons why hybrid seeds are expensive.
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A: Monohybrid crosses considers single trait.
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- A scientist pollinates a true-breeding pea plant with violet, terminal flowers with pollen from a true-breeding pea plant with white, axial flowers. Which of the following observations would most accurately describe the F2 generation? a. 75% violet flowers; 75% terminal flowers b. 75% white flowers in a terminal position c. 75% violet flowers; 75% axial flowers d. 75% violet flowers in an axial positionWhat are the advantages of breeding for disease-resistance in plants?For each of the following statements, indicate whether the statement describes the P generation, F1 generation, or F2 generation. The plants in the P generationF1 generationF2 generation were allowed to self-pollinate. The plants in the P generationF1 generationF2 generation are true breeding. After a cross, there are three times as many tall plants as there are short plants in the P generationF1 generationF2 generation.
- Consider the following hypothetical gene a plant g&T produces a protein that impacts the stem length. There are two alleles for GT which produces long stem and tea little tea which results in short stint. Which of the following genome types above would have a different pheno type? And what would the phenotype be for the genotype?The shoot morphologies of the Arabidopsis plants below reflect their genotypes. Upper case gene symbols indicate wild type alleles, lower case symbols indicate mutant alleles. Arrowheads indicate a vegetative shoot. What is the genotype of plant 2? A. LFY AP1 TFL1 B. lfy ap1 TFL1 C. lfy AP1 TFL1 D. LFY ap1 TFL1 E. LFY AP1 tfl1Why plant breeders intend to change the inheritance of crop plants? How plant breeders can change the heredity of crop plants? Explain your answer in briefly.
- In the left-hand part of Figure 2-4, the red arrows showselfing as pollination within single flowers of one F1plant. Would the same F2 results be produced by crosspollinating two different F1 plants?Consider the following hypothetical gene a plant. Gene T produces a protein that impacts stem length. There are two alleles for gene T, T which produces long stems and t which results in short stems. If gene T displays incomplete dominance, which of the following genotypes above would have a different phenotype? and What would the phenotype be for this genotype?Why is it important to preserve the genetic diversity of crops and their landraces and wild relatives? How can we preserve populations of honeybees and of native pollinators?
- Consider the following hypothetical gene a plant. Gene T produces a protein that impacts stem length. There are two alleles for geneT, T which produces long stem and t which results in short stem if gene T displays incomplete dominance and what of the following genetype above would have a different phenotypeWhat is a lethal allele? Would you expect most lethal alleles to be recessive (that is, only ll is fatal), or would you expect many of them to be dominant (LL and Ll are both fatal)? Do you think a plant carrying a dominant lethal allele would survive very long? Do you think such a plant could become abundant in the population?list all gamets that could be made by a pea plant heterozygous for seed colour, seed shape and pod shape(Yy, Rr, Ii) what size punnett square would you need to determine offspring of self pollination of this hybrid