What is a karyotype?
A) A picture of all the chromosomes in one person's cell
B) A list of all the genes on our chromosomes
C) A complete sequence of our DNA
D) A list of all the mutations in our chromosomes
A
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Which of the following statements is true regarding the parasexual cycle demonstrated by some fungi? Select all correct choices
A. It involves mitotic recombination. B. It involves meiotic recombination. C. Chromosomes are lost until haploid (1n) cells are achieved. D. Chromosomes are added until haploid (1n) cells are achieved. E. The parasexual cycle produces dikaryotic (n+n) cells.
"Adult" stem cells are more accurately called tissue-specific or somatic stem cells because
A) they are also present in the tissues of embryos, fetuses, and children. B) some adults do not have them. C) whether they are present or not in an adult depends upon the individual's level of maturity. D) an adult body also contains embryonic stem cells.
List and discuss three effects of acid rain or acid deposition on forests
What will be an ideal response?
Root hairs develop from the
A) pericycle. B) cortex. C) endodermis. D) Casparian strip. E) epidermis.