The 3 parts of sperm are the head, middle piece and _______________
A. Acrosome cap
B. Head
C. Midpiece
D. Flagellum
E. Tail
Answer: D. Flagellum
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The basic building block of DNA and RNA is a(n) ____
a. nitrogenous base b. sugar-phosphate backbone c. amino acid d. nucleotide e. ribose sug
The law of segregation states that
A) when two identical alleles come together, complete dominance occurs in terms of phenotype. B) genes for different traits assort independently of each other during the formation of egg and sperm. C) genes separate from each other during gamete formation so that each sperm and egg receive only one allele from each pair. D) when different alleles for the same trait come together, one allele will be recessive to another. E) different alleles for the same gene occupy unique loci on sister chromatids.
The nucleolus is the site where
a. ribosomal RNA is transcribed and ribosomes are assembled. b. DNA replication occurs. c. proteins recently imported from the cytoplasm are deposited. d. translation occurs.