Q. When performing a sequence alignment between two DNA or protein sequences, which of the following statements best describes the point at which shared ancestry can no longer be detected?

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#Question id: 37998

#Plant Biotechnology

Statement I: Unpollinated ovaries are generally preferred over pollinated ones for the production of haploids via gynogenesis.

Statement II: In maize, diploidization issues during anther culture are often addressed by treating the crowns of 3–4 tiller stage plants with DMSO.

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#Question id: 37999

#Plant Biotechnology

Statement I: For gynogenesis, complete ovule maturation is strictly necessary for successful induction.

Statement II: Unpollinated ovaries are generally preferred over pollinated ones for haploid production.

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#Question id: 38000

#Plant Biotechnology

List I (Factor)	List II (Effect/Detail)
A. Seasonal Effects	1. Ovule callus induction in Gerbera is higher in autumn
B. Stage of Collection	2. Flower buds excised 24–48 hours before anthesis
C. Physical Factors	3. Cold treatment increases haploid callus frequency in Salvia sclarea

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#Question id: 38001

#Plant Biotechnology

How does the position of the flower on the donor plant affect the response in sugar beet gynogenesis? 

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#Question id: 38002

#Plant Biotechnology

Regarding the effect of sucrose concentration on gynogenesis culture media, which of the following is correct? 

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#Question id: 38003

#Plant Biotechnology

Gynogenesis is particularly significant for producing haploids in species like Gerbera because: