HMB265H1 Lecture : Notes taken during lecture

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redtermite204

1 Feb 2011

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Do not care about which disease is dominant or recessive. A blood types produce a antigens, expressed on surface of rbc. would not produce a antibodies otherwise, ill. With blood transfusion transfusing the red blood cells antibodies are in serum, not transferred. Type o no antigens produced only receive blood from other type o and. Dihybrid cross passed on together (yellow, also round) or independent segregate. mendel saw independent assortment for the seven traits he examined. might not always be t rue: traits cosegregate in progeny so probability of passing on one allele is no longer independent of passing on another allele. maybe the sg are linked in parental generation. can only make two phenotypes the parental ones: so only have sg and sg, so genotypes of progeny can only be ssgg and ssgg and ssgg. three types of progeny: round and red is ssgg.

Related Questions

Complete the four-part question.

If you have an organism in which the A allele is dominant to the a allele, a heterozygote will produce gametes of either A or a. This is what leads to two phenotypes among the offspring in an F2 cross (ie. Aa x Aa). In genetic terms this is called

a. dominant

b. recessive

c. segregation

d. independent assortment

e. none of the above

If you have an organism of genotype AaBb (A dominant to a, and B dominant to b), there will be 4 phenotypic classes among F2 progeny in a 9:3:3:1 ratio. In genetic terms this is an example of

a. dominant

b. recessive

c. segregation

d. independent assortment

e. none of the above

Which type of nuclear division produces diploid cells from diploid cells? Haploid cells from diploid cells?

a. fission, fusion

b. meiosis, mitosis

c. mitosis, meiosis

d. linkage, independent assortment

e. none of the above

If a pea plant shows a recessive phenotype

a. it can be either TT or Tt

b. it can be either Tt or tt

c. it can be only TT

d. it can only be tt

e. it can be TT, Tt ot tt

brownwildebeest141

Find the correct statement (may require you to draw pedigrees and Punnett squares) A) A father with A blood type and a mother with B blood type, will always produce

children that are AB

B) A person with ii alleles will produce red blood cell that contain glycolipids with

galactosamine and galactose sugars

C) A person with the A blood type can only give blood to an A or O individual

D) If an AB father conceives a child with an O mother, the children have a 50%-50%

chance of being either AB or O

E) Each person has three alleles of the blood type gene

F) The IA allele is codominant to the i allele

G) A person with a B blood type will produce antibodies against the A blood type antigen

blueleopard542

Which of Mendel's findings provided the best evidence for the principle of independent assortment?

		A tall plant and dwarf plant will produce all tall offspring.
		Homozygous recessive traits are always rare.
		A dihybrid cross will result in non-parental phenotype combinations (not seen in original P generation)
		A monohybrid cross will result in a 1:2:1 genotype ratio.

HMB265H1 Lecture : Notes taken during lecture

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