Which of the following is a part of the Y chromosome that is necessary for male development?

Heterosis is likely to have a  __________ effect on corn crops and lead to higher crop yield.

Half siblings, on average, share more of their genomes than to uncle-nephews.

Flower color in a certain plant is determined by two independently assorting genes, B and D. The dominant B allele allows a pigment precursor to be converted into a blue pigment. Without this conversion, the plant is white. The dominant allele D causes the blue pigment to degrade and the resulting phenotype is white, whereas the recessive allele d has no effect. A true-breeding white (bbDD) and a true-breeding blue parental strain were mated. If the F1s were then crossed, what portion of the F2s would you expect to be white?

A man with hemophilia mates with a woman who is normal but whose father was a hemophiliac.  What percentage of their daughters would you expect to be hemophiliacs?

A female carrier of hemophilia mates with a man with hemophilia and has offspring. If the couple has four children, what is the probability that they will have at least three with hemophilia?

True or False. In a PCR reaction dNTPs are the nucleotide building blocks used to manufacture the new strand of DNA. In contrast, in a sequencing reaction both dNTPS and ddNTPs are used.

RNA molecules that are intermediaries that carry genetic information from DNA to the ribosomes where proteins are synthesized are known as:

Transcription takes place in which part of the eukaryotic cell?

Bateson and Punnett mated purple sweetpeas with white sweetpeas. F1 hybrids were all purple in color. When the hybrids were mated, a ratio of 9 purple : 7 white were observed in the F2 generation. Which of the following could best explain this observation?