A series of two point crosses is carried out between genes for brown eyes (bw), and arc wings (a), vestigial wings (vg) , ebony body color (e), and curved wings (cv). The following number of nonrecombinant (NR) and recombinant progeny (R) were obtained from each cross. Genes in cross Progeny (NR) Progeny (R)
a, bw 2224 117
a, cv 2609 823
a, e 3200 3200
a, vg 5172 2379
bw, cv 4614 1706
bw, e 4150 4150
bw, vg 2796 1434
cv, e 3116 3116
cv, vg 2102 305
vg, e 4559 4559

Required:
Using these data form two-point crosses, create a genetic map for these genes, providing the order of the genes and your best estimates of the distances between them.

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing