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DO NOW EOC REVIEW 4/26/17-WED.
COMPLETE THE FOLLOWING: DNA ____ PROTEIN WHAT PROCESS OCCURS AT #1? #2? IF ALL OF YOUR CELLS HAVE THE EXACT SAME DNA, HOW IS IT THAT THEY ARE DIFFERENT? MEANING THEY HAVE A DIFFERENT JOB/FUNCTION. HOW IS THAT POSSIBLE?
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Do now 4/26 Missed Grade 100 1 90 2 80 3 70 4 60 5 50 6 40 7 30 8 20 9 10 Get out your questions
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Genetics
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46. vocabulary dominant – written as a capital letter, this trait will show in Mendelian genetics recessive – written as a lower case letter; only will show if two recessive alleles are present homozygous – SAME alleles; TT or tt heterozygous – DIFFERENT alleles; Tt genotype – letter combination that show the genes; TT, Tt, tt phenotype – physical description; tall or short
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47 In a genetics laboratory, two heterozygous tall plants are crossed. If tall is dominant over short, what are the expected phenotypic results? Tt x Tt T t T t Phenotype: 75% TALL TT, Tt 25 % SHORT tt 3:1 TT Tt tt
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R Tt Tt tt tt x Tt t t T t 50% short 50% tall 1:1
If one homozygous short plant is crossed with a heterozygous tall plant, what percentage of the offspring will be short? tt x Tt t t T t 50% short 50% tall 1:1 Tt Tt tt
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RRDd RRdd x RrDD Rd Rd Rd Rd RD RrDd rD
Show a cross between RRdd x RrDD. Red eyes are dominant to black eyes and Dark fur is dominant to light fur. RRdd x RrDD Rd Rd Rd Rd RD rD RRDd RrDd
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Genotypes: RRDd-50% RrDd-50% Phenotypes: 100% red eyes and dark fur
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Incomplete dominance the two traits blend when both are present
RW x RW Two pink flowers are crossed R W R W 25% RED-RR 50% PINK-RW 25% WHITE-WW RR RW WW
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Co-Dominance Both traits show up when both are present
A A A B 50% AA IA IA IA IB
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Explain how it is possible for a man with type a blood and a woman with type b blood have a child with type o blood. O (i) blood is recessive, so if the male is AO and the female is BO then a child could have OO
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#51 Sex linked traits are carried on the sex chromosome X
Males have one X, females have two X’s Therefore a male only needs one allele to have the trait, but females need 2 alleles to have the trait. This makes is more rare for a female to have a sex linked trait. But females can be carriers
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#52 Sample Sex-linked trait Question: Color blindness is a sex-linked recessive trait. A mother with normal color vision and a color blind father have a color blind daughter. Which of the following statements is correct? All of their daughters will be color blind. The mother is a carrier of the color blindness gene. All of their sons will have normal color vision. All of their sons will be color blind.
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IPMATPMAT = 2 CELL DIVISIONS (ONLY 1 INTERPHASE)
After number 29 ADD IN! IPMATPMAT = 2 CELL DIVISIONS (ONLY 1 INTERPHASE)
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