Alan Cooper, Cécile Mourer Chauviré, Geoffrey Chambers, Arndt von Haeseler, Allan Wilson and Svante Pääbo investigated the evolutionary relationship among some extinct and living species of flightless birds. They concluded that kiwis are more closely related to African and Australian flightless birds than they are to the moas. What hypothesis did they propose from this conclusion?
A. That their data was incorrect and the sample from the museum was corrupted.
B. That flightless birds only occurred once in New Zealand.
C. That New Zealand was colonized twice by ancestors of flightless birds.
D. That the South American species ancestors flew to New Zealand before the flightless mutation occurred.
E. That the North American flightless bird originated from an ancestor of the New Zealand species.
C. That New Zealand was colonized twice by ancestors of flightless birds.
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Several types of evidence have linked bipolar disorder to genes. Which one of the following is NOT
one of these types of evidence? A. Biochemical studies B. Twin studies C. Adoption studies D. Association studies E. Studies involving degrees of relatedness
Suppose that pigmentation of a Labrador retriever's fur is subject to epistasis of the B alleles by the e alleles. B (black) is dominant over b (chocolate brown). E is dominant over e. Homozygous e is epistatic to the black and chocolate-brown genes. Given this information, what will result from a F1 dihybrid cross between two dogs?
a. 9/16 black, 6/16 brown, 1/16 yellow b. 9/16 yellow, 3/16 brown, 4/16 black c. 9/16 yellow, 6/16 brown, 1/16 black d. 9/16 black, 3/16 brown, 4/16 yellow
Describe what is known about mtDNA replication and segregation
What will be an ideal response?
The red spot on the beak of a herring gull parent is a sign stimulus received by baby gulls
a. True b. False