A human cell containing 22 autosomes and a Y chromosome is
A) a somatic cell of a male.
B) a zygote.
C) a somatic cell of a female.
D) a sperm cell.
E) an ovum
Ans: D) a sperm cell.
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A human population with an age structure diagram that is narrower at the base than at the top would
have ____.
a. zero population growth b. r < 0 c. r > 0 d. been affected by density independent factors e. (K ? N)/K < 1
In the garden pea, Mendel found that tall (D) green pods (G) and inflated pods (C) were dominant to
their alleles, dwarf (d) yellow pods (g), and constricted pods (c). Given the following genotypes, determine the chances of producing the offspring shown. (a) DD Gg Cc ? Dd Gg cc ? DD gg Cc (b) DD Gg Cc ? Dd Gg Cc ? tall green pod, constricted pod (c) Dd Gg Cc ? Dd GG cc ? tall green pod, inflated pod (d) Dd Gg Cc ? Dd Gg Cc ? D_ G_ cc (e) Dd Gg Cc ? Dd gg CC ? D_ G_ C_ (f) Dd gg cc ? DD Gg cc ? tall green pod, inflated pod (g) Dd Gg Cc ? Dd Gg Cc ? Dd Gg Cc (h) Dd Gg Cc ? Dd Gg Cc ? dd gg cc What will be an ideal response?
Which of the following is a zone of decomposition?
A) forest canopy B) photic zone C) forest floor D) kelp forest
A karyotype of one of your skin cells would reveal a total of 46 chromosomes. How many of these are maternally inherited autosomes?
a) 23 b) 22 c) 46 d) 24 e) 21