The diagram to the right represents a pair of homologous chromosomes in a diploid cell, and the resulting chromosome in a haploid cell. The letters represent alleles of genes. Why does the chromosome in the haploid cell have alleles from both of the
chromosomes in the diploid cell?
Homologous
Chromosomes Chromosome
in Diploid Cell in Haploid Cell
A
a
B
b
b
С
c
D
d
E
E
O Incomplete dominance occurred during gene
O Independent assortment occurred during fertilization.
Crossing over occurred during meiosis
A mutation occurred during a viral infection

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

Which is the correct formula for photosynthesis