In radishes, two incompletely dominant genes
control color and shape. Red and white radishes are
homozygous, whereas the hybrid is purple. Long and
round are homozygous and, if crossed, will produce
an oval hybrid. Give the F2 genotypic and
phenotypic ratio produced by crossing pure-breed
red long radishes with white round varieties. What will be an ideal response?
Answer: 1 LL RR long red, 2 LL Rr long purple, 2 Ll RR oval
red, 4 Ll RR oval purple, 1 ll RR round red, 1 ll Rr
round oval, 1 Ll rr long white, 2 Ll rr oval white, 1 ll rr
round white
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Fermentation is a process that proceeds without oxygen. Such a process can be described as ________.
Fill in the blank(s) with the appropriate word(s).
What is the difference between genetic dissection and genome sequencing?
A) Genetic dissection reveals information about one gene at a time and genome sequencing reveals information about all the genes in a genome at once. B) Genetic dissection experiments can be accomplished in any species and genome sequencing is only possible in model organisms. C) Genetic dissection depends on the availability of mutations in model organisms and mutations are of no use in the study of genomes by genome sequencing. D) The genetic dissection approach is affordable and genome sequencing is prohibitively expensive.
In the section "Investigating Life: Birds Do, Bees Do It", what can be concluded about the flower preferences of hummingbirds?
A. They prefer pink flowers. B. They prefer M. cardinalis in both the natural and selected colors tested. C. They prefer yellow-orange flowers. D. They prefer red flowers. E. They prefer M. lewisii in both the natural and selected colors tested.
One out of every 800 to 1000 infants born will have three copies of chromosome 21 (trisomy 21), a condition known as ________
Fill in the blank(s) with correct word