If an individual with the dominant phenotype is crossed with an individual with the recessive phenotype and all the offspring have the dominant phenotype, it would be concluded that the individual with the dominant phenotype is _____.
a. homozygous dominant
b. heterozygous
c. homozygous recessive
Ans: a. homozygous dominant
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Imagine that you compare two DNA sequences found in the same location on homologous chromosomes. On one of the homologs, the sequence is AACTACGA. On the other homolog, the sequence is AACTTCGA
Within a population, you discover that each of these sequences is common. These sequences _____. A) contain an SNP that may be useful for genetic mapping B) identify a protein-coding region of a gene C) cause disease D) protect against disease E) do none of the listed actions
The endomembrane system is involved in each of the following functions EXCEPT ____
a. DNA synthesis b. synthesis of proteins c. synthesis of lipids d. transport of proteins to outside the cell e. detoxification of some toxins
In plants, which of the following cells is(are)
diploid? a. egg b. sperm c. spore d. leaf cell e. spore and leaf cell
The movement of oxygen and hydrogen in the form of water takes place in which cycle?
a. global water cycle b. atmospheric cycles c. sedimentary cycles d. solar-plant cycle e. all of these