If humans have 46 chromosomes in each of their body cells, how many chromosomes would you expect to find in a sperm cell? In humans, each cell normally contains 23 pairs of chromosomes. How many chromosomes does a human cell contain? How many chromosomes does a human gamet...
If humans have 46 chromosomes in each of their body cells, how many chromosomes would you expect to find in an egg cell? How many possible gamete combinations are there for an organism that has a diploid number of 8? How does the number of chromosomes in sperm/egg compare with the num...
According to Carl Sagan in "The Dragons of Eden": Large organisms such as human beings average about one mutation per ten gametes [a gamete is a sex cell, either sperm or egg] -- that is, there is a 10 percent chance that any given sperm or egg cell produced will have a new and ...
In live-bearing animal lineages, the evolution of the placenta is predicted to create an arena for genomic conflict during pregnancy, drive patterns of male sexual selection, and increase the rate of speciation. Here we test these predictions of the vivi
According to Carl Sagan in "The Dragons of Eden": Large organisms such as human beings average about one mutation per ten gametes [a gamete is a sex cell, either sperm or egg] -- that is, there is a 10 percent chance that any given sperm or egg cell produced will have a new and ...
Driving endonuclease genes (DEGs) spread through a population by a non-Mendelian mechanism. In a heterozygote, the protein encoded by a DEG causes a double-strand break in the homologous chromosome opposite to where its gene is inserted and when the brea
The consequences of thepossible cross-overs were:Recombination could occur between one gene pair, or the other, or both (a double cross-over).The female F1 flies could thus produce eight types of gametes, corresponding to the two parental and sixrecombinant types of chromosomes. In the case ...
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If a parent has the genotype aaBb, what combinations of alleles can the parent give to its gametes based on the principle of independent assortment? What are the possible gametes for the individual with the genotype: YYSs? How many possible alleles are there...
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