Summative test 3
Quiz by Marites P. Banzon
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15 questions
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- Q1If you cross breed two roan cows, what percentage of progeny is expected to be roan?25%75%50%10%30s
- Q2In case of codominance, the product is _____produced from both the allelesproduced from one allelenone are functionalincompletely produced from both alleles30s
- Q3A man heteroxygous for Blood type A marries a woman heterozygous for Blood type B. What is the chance that their first child will hav type O blood?75%50%25%0%30s
- Q4In human blood groups, an individual having an AB blood type is an example of _____codominanceblendingheterozygouz advantageincomplete dominance30s
- Q5Codominance occurs when ________both options are correctneither allele is dominant or recessiveboth alleles for a gene are equally expressedno option is correct30s
- Q6Which of the following is NOT an example of codominance?A flower offspring of red and white flowers has both red and white petalsA child of parents with blood types A and B has AB blood typeA calf of red cow and a white cow has a roan coat consisting of red and white hairsA parent with blue eyes and a parent with with brown eyes have a child with brown eyes30s
- Q7In cattle, roan coat color(mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. Which of the following crosses would produce an offspring in the ratio of 1 red: 2 roan: 1 white?red x whitered x roanwhite x roanroan x roan30s
- Q8A mother with type A blood gives birth to a child with type O blood. Which of the following could not be the blood type of the father?Any of the blood type is possibleOAAB30s
- Q9A roan cow shows codominance in fur color (brown and white). What phenotype ratio is expected in an offspring when a female roan and a male roan mate?All four would be brown and white2 brown: 2 brown and white: 0 whiteHalf would be orange, half would be white1 brown: 2 brown and white: 1 white30s
- Q10Blood types are an example of codominance and _____incomplete dominancesex linked traitspolygenicsmultiple alleles30s
- Q11Complete a cross between a speckled flower (red and white) and a red flower. What would be the phenotypic ratio of their offspring?4 red: 0 speckled1 speckled: 1 white4 speckled: 0 white2 red: 2 speckled30s
- Q12What happens if you breed a patchwork fish (with blue and red scale) with a fish that only has blue scales? What is the probability of having fish with red scales?0%25%50%75%30s
- Q13In a certain fish, blue scales(BB) and red scales (bb) are codominant. When a fish has the hybrid genotype, it has a patchwork of blue and red scales. What is the genotype for blue fish?BBAbbbBb30s
- Q14If a red (RR) and a white flower (WW) were crossbred resulting in 100% RW, what phenotype would be seen according to the rules of codominance?Red and white spotted flowerRed flowerPink flowerWhite flower30s
- Q15What do you call a black and white spotted chicken as an example of codominance?erminetteroanpalominopatchwork30s