One form of male sterility (Ms) in corn is maternally transmitted. Plants of a male sterile...

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Biology

One form of male sterility (Ms) in corn is maternallytransmitted. Plants of a male sterile line crossed with normalpollen give male-sterile plants. In addition, some lines of cornare known to carry a dominant nuclear restorer allele(Rf-1) that restores pollen fertility in male sterilelines. Another dominant restorer (Rf-2) has been found on adifferent chromosome. Either or both of the restorer alleles willrestore pollen fertility in male sterile lines.
A male-sterile plant is crossed with pollen from a planthomozygous for Rf-1. An F1 plant from this cross is used as theovule donor, and crossed with pollen from a normal plant(rf-1/ rf-1). What phenotypes are produced bythis cross?
the ANSWER is fetile females; 1/2 fertile males; 1/2 sterilemales
I was just wondering if you could explain this answer?Thanks!

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4.3 Ratings (828 Votes)

Typical cytoplasm is shown n and malesterile cytoplasm is ms The way to this issue is to understand that there is an atomic quality Rf isolating in Mendelian form and an organelle isolating in nonMendelian maternal design Eggs from malesterile plants result in more malesterile See Answer

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