Loss of type A activity - formation of carpels ( first whorl )and stamens instead of petals (second whorl).
Expression of A gene inhibited in whorl 2:
Whorl 1 - Sepal, Whorl 2- stamen , Whorl 1- Stamen, Whorl 4- Carpel
The figure below illustrates the normal expression pattern of the ABC genes that regulate flower patterning...
Plant Lab Select 3 differently shaped flowers from a florist or grocery store – (Walmart even has a decent selection – a lily, a carnation, and a snapdragon are all nice and very different from one another). • Find out what kind of flowers you have and find an image of each on the internet – It would be best if you can find one that talks about flower parts • For each flower, note whether there are sepals, petals,...
1. When you look at a pine or maple tree, the plant you see is a _____. 2. The Brazil nut tree, Bertholletia excels (n = 17), is native to tropical rain forests of South America. It is a hardwood tree that can grow to over 50 meters tall, is a source of high-quality lumber, and is a favorite nesting site for harpy eagles. As the rainy season ends, tough-walled fruits, each containing 8-25 seeds (Brazil nuts), fall to the...
6. In tigers, a dominant allele (W) is responsible for the expression of the normal orange pigment. Individuals that inherit twe recessive alleles (w) lack the normal orange pigment in their fur, appearing white with black stripes. A pair of normally colored parewis produces a cub that is white with black stripes and scab that is orange with black stripes. What are the possible genotypes of the cube? b. What are the possible genotypes of the parents? 6. Explain your...