What is the genotype of the wild-type mother of these progeny?
In Drosophila, the autosomal recessive pr and cn mutations cause brown and bright-red eyes, respectively (wild-type flies have brick-red eyes). Flies who are homozygous recessive at both pr and cn have orange eyes. A female who has wild-type eyes is crossed to an orange-eyed male. Their progeny have the following distribution of eye colors:
A) pr cn / pr+cn+
B) pr+cn / pr+cn
C) pr+cn / pr cn+
D) pr cn+ / pr cn+
E) pr cn / pr cn
C) pr+cn / pr cn+
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What factor most influences the dry deserts of Nevada?
A) the hot desert sun B) the Pacific Ocean C) overgrazing by livestock D) the rain shadow from a California mountain range
Individuals diagnosed with Huntington's disease exhibit abnormal involuntary movements due to deterioration of the ________
Fill in the blank(s) with correct word
In a(n) (hypertonic/isotonic/hypotonic) solution, an animal cell can gain so much water that it may burst
What will be an ideal response?
Dwarf plants are often short because they produce less gibberellin than taller varieties of the same species. What other scenarios might lead to dwarf plants? Choose all that apply.
A. GID proteins that can't bind gibberellin as well B. DELLA proteins that bind transcription factors more strongly than normal C. DELLA proteins that can't bind transcription factors as well D. GID proteins that can't bind DELLA proteins as well