A fungus with white spores cross fertilizes a fungus with black spores. If 10% of the progeny bear white spores while 90% of the progeny bear black spores, what must be true?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A fungus with white spores cross fertilizes a fungus with black spores. If 10% of the progeny bear white spores while 90% of the progeny bear black spores, what must be true?

  •  
    A.

    The trait for spore color is determined by exactly one gene.

  •  
    B.

    The trait for spore color is determined by more than one gene.

  •  
    C.

    The allele for black spores is dominant over that for white spores.

  •  
    D.

    The allele for white spores is dominant over that for black spores.

cross-fertilization
asexual
asexual
conidia(n)
conidia(n).
cycle
cycle
hyphae of
mating-type A
hyphae of
mating-type a
zygote
zygote
nucleus (2n)
nucleus (2n)
40
I first meiotic division
second meiotic
division
mitotic division
@@@
ascus with eight ascus with eight
ascospores (n)
ascospores (n)
in ordered array in ordered array
Transcribed Image Text:cross-fertilization asexual asexual conidia(n) conidia(n). cycle cycle hyphae of mating-type A hyphae of mating-type a zygote zygote nucleus (2n) nucleus (2n) 40 I first meiotic division second meiotic division mitotic division @@@ ascus with eight ascus with eight ascospores (n) ascospores (n) in ordered array in ordered array
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