Refer to the paragraph on Brown et al. and Morwood et al. It is speculated that H. floresiensis and H. sapiens may have lived on Flores concurrently
Suppose researchers obtained mitochondrial DNA samples from the H. floresiensis remains, amplified a 1000-base-pair sequence via PCR, and compared it to that of several currently living H. sapiens native to Indonesia, North Africa, and North America. Also suppose H. floresiensis were found to differ from the average Indonesian H. sapiens in 28 base pairs, from the average North African H. sapiens in 51 base pairs, and from the average North American H. sapiens in 53 base pairs, while two randomly selected H. sapiens differed from each other in an average of 21 base pairs. What would you surmise from these data?
A) H. floresiensis and H. sapiens probably did not live on Flores concurrently.
B) H. floresiensis and H. sapiens probably lived on Flores concurrently but did not interact.
C) H. floresiensis and H. sapiens probably lived on Flores concurrently, and H. sapiens killed and consumed H. floresiensis.
D) H. floresiensis and H. sapiens probably lived on Flores concurrently and interbred to some degree.
D
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Synapsis is best described as:
A. the exchange of genetic information between sister chromatids. B. the alignment of non-sister chromatids at the metaphase plate. C. the exchange of genetic information between non-sister chromatids. D. the alignment of homologous chromosomes in prophase 1.
Circulation developed due to which of the following?
a. Animals got larger. b. Segmentation allows increasing specialization of body parts. c. The development of a complete digestive tract allows the specialization of regions to carry out a variety of functions. d. Circulatory systems allow more efficient transfer of materials and gave an advantage to the animals that developed them. e. None of these are true.
One of your best friends loves to run long distances. You ask her what she enjoys about running. In addition to good physical fitness, she tells you that after a run she feels extra happy
You suspect that her joy might be related to increased production of ________ by the anterior pituitary gland. A) endorphins B) releasing hormones C) prolactin D) adrenalin
In humans, meiosis is a part of
What will be an ideal response?