Eye color in Drosophila present on X chromosome, Red eye color is dominant over white eye color. There is non disjunction in Meiosis I in female and normal meiosis in male. Female is white eye color was cross with red eye male. What will be expected phenotype in their progeny?

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#Question id: 39274

#Plant Biotechnology

Q. Superior somatic hybrids of Datura are primarily exploited for:

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#Question id: 39275

#Plant Biotechnology

Q. Which of the following best explains why symmetric somatic hybrids are valuable in crop improvement programs?

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#Question id: 39276

#Plant Biotechnology

Q. Which of the following pairs is incorrectly matched?

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#Question id: 39277

#Plant Biotechnology

Q. Which of the following traits is most likely to arise as a novel characteristic in somatic hybrids?

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#Question id: 39278

#Plant Biotechnology

Q. Consider the following statements regarding cytoplasm transfer via somatic hybridization:

Statement I: Cytoplasm transfer that normally takes 6–7 years via backcrossing can be achieved in just one year using protoplast fusion.

Statement II: Iodoacetate is used to inactivate the nucleus of the recipient parent protoplasts.

Statement III: Irradiation of donor protoplasts is used to inactivate their nuclei.

Statement IV: The resulting cybrids contain the nucleus of parent A and mitochondria of parent B.

Which of the statements are correct?

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#Question id: 39279

#Plant Biotechnology

Q. Regarding the tomato × Solanum acaule cybrids:

Statement I: Regenerants were morphologically and cytologically similar to tomato.

Statement II: They exhibited cytoplasmic male sterility (CMS) inherited maternally.

Statement III: CMS expression disappeared after one generation.

Statement IV: Some regenerants had malformed or nonfunctional pollen.

Which statements are correct?