Somatic cells of roundworms have four individual chromosomes per cell. How many chromosomes would you expect to find in an ovum from a roundworm?
A) four
B) two
C) eight
D) a diploid number
Answer: B
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If a fern gametophyte has both male and female gametangia on the same plant, then it _____
A) belongs to a species that is homosporous B) must be diploid C) has lost the need for a sporophyte generation D) has antheridia and archegonia combined into a single sex organ E) is actually not a fern, because fern gametophytes are always either male or female
Trisomy 21 is the only autosomal trisomy that allows survival into adulthood
a. True b. False Indicate whether the statement is true or false
A slime coat called peptidoglycan covers the walls of many bacteria
Indicate whether the statement is true or false.
Compare the use of biosensors with traditional methods of determining microbial contamination
What will be an ideal response?