In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is cross with the heterozygous for bitter and no spots, what phenotypes ratio are expected in the offspring?

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#Question id: 3033

#Unit 2. Cellular Organization

Which phase shows the reproduction rate equal to the equivalent death rate?

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#Question id: 10272

#Unit 8. Inheritance Biology

Specific place on a chromosome occupied by an allele

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#Question id: 7191

#Unit 5. Developmental Biology

In tunicate embryo, Presumptive endoderm originates from the vegetal A4.1 and B4.1 blastomeres. The specification of these cells coincides with the localization of β-catenin. Which of the following statement is incorrect?

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#Question id: 1323

#Unit 4. Cell Communication and Cell Signaling

Which of the following proteins forms channels that permit electrical communication between cells across gap junctions?

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#Question id: 26811

#Unit 8. Inheritance Biology

Sequence rich with cytosine and guanine base pairs  that are not detected by