Answer:
610:190 round seeds: wrinkled seeds
Explanation:
A cross between two true breeds, involves crossing two parents that are each homozygous for the traits they carry.
A cross between a true breeding round parent (RR) and a true breeding wrinkled plant (rr), will produce all heterozygous offspring:
Rr : 100% in the F1 generation.
When these heterozygous offspring are crossed, Rr x Rr, the proportion obtained genotypically in the second filial generation is:
- 25% homozygous round (RR)
- 25% homozygous wrinkled (rr)
Considering the importance of dominance in phenotypic expression, round seeds being dominant over wrinkled seeds, indicates that about 75% of the offspring are expected to appear round and 25% expected to appear wrinkled. Putting this phenotypic proportion into perspective,
<em>610:190 round seeds:wrinkled seeds,</em> is the ratio in line with the proportion expected to see in the F2 generation.
Add a few drops of glycerine on the slide,it will prevent the slide from drying.
Answer:
Explanation:
The basic flow of genetic information in biological systems is often depicted in a scheme known as "the central dogma" (see figure below). This scheme states that information encoded in DNA flows into RNA via transcription and ultimately to proteins via translation.
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That would be oxidative phosphorylation...this involves the electron transport chain; takes one NADH to make 2.5 ATP, one FADH2 to make 1.5 ATP...overall you make 34 ATP molecules.