Polyploidy can result when
A) a translocation occurs between two chromosomes.
B) one pair of homologous chromosomes does not separate during meiosis.
C) a developing gamete is haploid.
D) a haploid sperm fertilizes a diploid egg.
D) a haploid sperm fertilizes a diploid egg.
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According to these data, what is the distance, in centimorgans, between these 2 gene loci? (Enter the number only without the units. For example, 100 cM would be entered as 100)
In the fruit fly Drosophila, there is a dominant gene for normal wings and its recessive allele for vestigial wings. At another gene locus on the same chromosome, there is a dominant gene for red eyes and its recessive allele for purple eyes. A male that was heterozygous at both gene loci was mated with a female that was homozygous for both recessive alleles and the following results were observed among the offspring: Normal wings and red eyes - 420 Vestigial wings and red eyes - 80 Normal wings and purple eyes - 70 Vestigial wings and purple eyes - 430 What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about linkage mapping by recombination? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which domain of life contains the most multicellular organisms?
A. Archaea. B. Bacteria. C. Prokarya. D. Eukarya. E. microorganisms.
The firefly (Photinus†granulatus) and the zebra mussel (Dreissena†polymorpha) are both members of the kingdom Animalia. This indicates that they must also both be members of the same
A. species B. genus C. order D. phylum E. domain
In the theory of evolution, which of the following evolves?
a. phyla b. classes c. populations d. individuals e. kingdoms