Suppose that an unknown organism from an alien planet is observed and found to have a diploid state in every other generation and to result from fertilization. The haploid state is able to grow into a gametophyte-like structure. Which life cycle strategies does this alien organism closely mimic?
a. those of all plants and some fungi
b. those of fungi and algae
c. those of algae and animals
d. those of plants and animals
Ans: a. those of all plants and some fungi
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In a pedigree:
A. males are circles; females are triangles. B. females are circles; males are triangles. C. males are squares; females are triangles. D. females are squares; males are triangles. E. males are circles; females are squares. F. females are circles; males are squares.
In a GWAS experiment, 500,000 SNPs across the genome are genotyped in thousands of Case and Control individuals. Which statistical analysis should be applied and why?
A) A chi-square test for goodness of fit will test the null hypothesis that the distribution of each SNP allele is the same in Cases and Controls. B) A chi-square test for goodness of fit can be used because this is a small number of SNPs. C) A chi-square test for independence should be used to test the null hypothesis that the distribution of each SNP allele is the same in Cases and Controls. D) A chi-square test for independence should be used to test the null hypothesis that each SNP is linked to a QTL.
Parts of the choroid form
a. the lens. b. the ciliary body. c. the iris. d. both b and c.
We can see only a small portion of the entire electromagnetic spectrum.
a. true b. false