Biology, Pages 251-265Neil Campbell and Jane Reece's BIOLOGY remains unsurpassed as the most successful majors biology textbook in the world. This text has invited more than 4 million students into the study of this dynamic and essential discipline. |
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Page 26
device for predicting the allele composition of offspring from a cross between
individuals of known genetic makeup . Notice that we use a capital letter to
symbolize a dominant allele and a lowercase letter for a recessive allele . In our
example ...
device for predicting the allele composition of offspring from a cross between
individuals of known genetic makeup . Notice that we use a capital letter to
symbolize a dominant allele and a lowercase letter for a recessive allele . In our
example ...
Page 46
The same odds apply to each sperm cell produced . For a particular F2 plant to
have wrinkled seeds , the recessive trait , both the egg and the sperm that come
together must carry the r allele . The probability that 2 two r alleles will be present
...
The same odds apply to each sperm cell produced . For a particular F2 plant to
have wrinkled seeds , the recessive trait , both the egg and the sperm that come
together must carry the r allele . The probability that 2 two r alleles will be present
...
Page 50
the egg and the recessive allele from the sperm — is 1/4 . The probability for the
other possible way — the recessive allele from the egg and the dominant allele
from the sperm — is also 1/4 ( see Figure 14.9 ) . Using the rule of addition , then
...
the egg and the recessive allele from the sperm — is 1/4 . The probability for the
other possible way — the recessive allele from the egg and the dominant allele
from the sperm — is also 1/4 ( see Figure 14.9 ) . Using the rule of addition , then
...
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Common terms and phrases
affect appearance apply blood group breeding brown called carbohydrate chance Chapter characters chromosomes coin combinations complex Concept consider depending determine developed dihybrid disease dominant allele enzyme equal event example experiments F1 hybrids F2 offspring factor Figure Fı plants flower color four gametes garden peas genotype green heads heritable heterozygotes heterozygous homozygotes homozygous human hybrids hypothesis identical incomplete dominance independent assortment individuals inheritance law of independent law of segregation locus mated Mendel Mendelian genetics molecules monohybrid cross multiple normal observed occur organism organism's pairs parent particular pea plants phenotypic ratio pigment population possible Ppyyrr predicted present principles produced Punnett square purple flowers purple-flower range recessive allele recessive trait red blood cells refer relation round rules of probability seed seed shape self-pollinate separate simple single gene specific studied toss true-breeding variations varieties vary white flowers white-flower allele wrinkled YyRr