In conjugation the DNA that will be transferred from the donor cell to the recipient cell is
A. single-stranded
B. double-stranded.
C. triple-stranded.
D. a mixture of single and double stranded.
A
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A new species of mammal is discovered deep in the Antarctic. This mammal contains an organ that does not seem to
be homologous to any other known organ. Upon examination, it appears that this organ is responsible for secreting hormones necessary for regulating subcutaneous fat levels to regulate body temperature. To which system does this new organ most likely belong?
a. digestive system b. integumentary system c. immune system d. endocrine system e. nervous system
A pedigree is useful because it ________
A) shows the genotype of a particular individual B) can help predict the chances of an offspring displaying a particular trait C) shows the phenotype of one individual D) can look at multiple traits at one time
Sucrose is translocated from source to sink. Indicate whether the statement is true or false
In the life cycle of bryophytes and seedless vascular plants, meiosis takes place in the
a. gametophyte. b. sporangium. c. archegonium. d. zygote. e. antheridium.