punnet$515368$ - ορισμός. Τι είναι το punnet$515368$
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Τι (ποιος) είναι punnet$515368$ - ορισμός

DIAGRAM USED TO PREDICT THE POSSIBLE OUTCOMES OF A BREEDING EXPERIMENT, AND THEIR RESPECTIVE LIKELIHOODS
Punnett Square; Punnet square; Allele chart; Grid chart; Punnets Square; Punnetts Square; Punetts Square; Punnent squares; Punnett squares; Punnett's square; Punnett's Square
  • 450 px
  • There are also Punnett squares for [[epistasis]]. In these cases the genotype epistatic over the other genes hinders their expression in the phenotype.
  • A Punnett square showing a typical [[test cross]]. (green pod color is dominant over yellow for pea pods<ref name="Mendel_1866_1"/> in contrast to pea seeds, where yellow [[cotyledon]] color is dominant over green<ref name="Mendel_1866_2"/>).

Punnet         
  • Strawberry seller carrying pottles, 1688, reworked and published after c.1750 Etching
SMALL BOX OR SQUARE BASKET FOR THE GATHERING, TRANSPORT, AND SALE OF FRUITS AND VEGETABLES
·noun A broad, shallow basket, for displaying fruit or flowers.
punnet         
  • Strawberry seller carrying pottles, 1688, reworked and published after c.1750 Etching
SMALL BOX OR SQUARE BASKET FOR THE GATHERING, TRANSPORT, AND SALE OF FRUITS AND VEGETABLES
¦ noun Brit. a small, light basket or other container for fruit or vegetables.
Origin
C19: perh. a dimin. of dialect pun 'a pound'.
punnet         
  • Strawberry seller carrying pottles, 1688, reworked and published after c.1750 Etching
SMALL BOX OR SQUARE BASKET FOR THE GATHERING, TRANSPORT, AND SALE OF FRUITS AND VEGETABLES
(punnets)
A punnet is a small light box in which soft fruits such as strawberries or raspberries are often sold. You can also use punnet to refer to the amount of fruit that a punnet contains. (BRIT)
...a punnet of strawberries.
N-COUNT

Βικιπαίδεια

Punnett square

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach in 1905. The diagram is used by biologists to determine the probability of an offspring having a particular genotype. The Punnett square is a tabular summary of possible combinations of maternal alleles with paternal alleles. These tables can be used to examine the genotypical outcome probabilities of the offspring of a single trait (allele), or when crossing multiple traits from the parents. The Punnett square is a visual representation of Mendelian inheritance. It is important to understand the terms "heterozygous", "homozygous", "double heterozygote" (or homozygote), "dominant allele" and "recessive allele" when using the Punnett square method. For multiple traits, using the "forked-line method" is typically much easier than the Punnett square. Phenotypes may be predicted with at least better-than-chance accuracy using a Punnett square, but the phenotype that may appear in the presence of a given genotype can in some instances be influenced by many other factors, as when polygenic inheritance and/or epigenetics are at work.