Question 47 (multiple choice worth 1 points)

which phase of meiosis lines the chromosomes up in the center of the cell?

metaphase
prophase
anaphase
telophase

question 48 (multiple choice worth 1 points)

the ribosomes are responsible for

digestion
storage
manufacturing proteins
transportation within the cell

question 49 (multiple choice worth 1 points)

gametes are

involved in mitosis
sperm and egg cells
sperm cells only
egg cells only

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Asolution containing hci would likely have

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.