(two points) In corn snakes, alleles at two loci control color pattern. Normal i
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Question
(two points) In corn snakes, alleles at two loci control color pattern. Normal individuals (and this is the type seen usually seen in the wild) are patterned with conspicuous black outline around red brick red blotches. Individuals which are homozygous recessive cinder condition are black and white patterned, with no red. Amelanistic individuals are homozygous recessive for a condition that inhibits black color-they have the red, but no black outlines. 5. A cinder snake from a true-breeding line is crossed to a lava snake from a true breeding line. The F1 offspring are all raised to adulthood. What color are they? a) b) Now, imagine that an F1 male is crossed to an F1 female. 16 eggs hatch. Predict the colors of the offspring.Explanation / Answer
a) If a cinder snake from a true-breeding line is taken,it's genetic makeup will be rrBB.
Now,if we take a lava snake from a true breeding line,it's genetic makeup will be RRbb.
It is quite clear that cinder snake and lava snake will produce rB and Rb gametes respectively.
Hence,all the F1 generation individuals will have the genetic makeup RrBb.Hence,all will be patterned and with black outline around brick red blotches.
b) If an F1 male is crossed with F1 female,
Hence,9 of these offsprings will be normal,3 amenalistic,3 will be black and white with no red colour,1 will neither have black nor have red.
RB Rb rB rb RB RRBB RRBb RrBB RrBb Rb RRBb RRbb RrBb Rrbb rB RrBB RrBb rrBB rrBb rb RrBb Rrbb rrBb rrbbRelated Questions
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