If a human diploid cell and a human haploid cell somehow managed to fuse together and not lose any of the chromosomes, how many sets of chromosomes would be inside the newly formed cell?
A) 3
B) 2.5
C) 2
D) 1.5
A
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The Human Genome Project was started in 1986 to
a. identify the nucleotide sequences of all human genes. b. develop a complete DNA library for a human gene. c. develop genetic markers for all genetic diseases. d. catalog all the varieties of human alleles. e. identify all humans that possess genetic defects.
The mesoderm is responsible for the formation of all
of the following organ systems EXCEPT the a. reproductive system. b. circulatory system. c. nervous system. d. muscle system. e. excretory system.
Which of the following are always photosynthetic?
A) macroparasites B) microparasites C) hemiparasites D) holoparasites
A cross is made between yeast cells with different alleles for a set of linked genes: pr+q × p+rq+. The resulting tetrads show a 3:1 ratio for r+ to r instead of the expected 2:2 ratio. Can you explain how this could have occurred?
What will be an ideal response?