During gamete formation at the end of telophase I, the ploidy of the daughter cells is ________, and each chromosome consists of ________ chromatid(s)
Fill in the blank(s) with correct word
haploid; two
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The source of new alleles in a population is
a. natural selection. b. mutation. c. microevolution. d. adaptation. e. genetic drift.
The ____ is an exchange organ formed by material and fetal tissues, and represents an effective barrier against most microorganisms in the maternal circulation
Fill in the blank(s) with the appropriate word(s).
Each gamete gets only one copy of an allele because it has ____
a. one copy of each chromosome b. one nucleus c. one chromosome d. a diploid number of chromosomes e. either an X or a Y
Members of the Domain Archaea are characterized by all of the following except:
a. Carry out unusual metabolic processes b. Contain distinctive ribosomal RNA c. Contain nuclei d. Live in extreme environments