Which of the following is the correct sequence in a cyclin-Cdk pathway?
A) Receptor ? cyclin ? Cdk ? growth factor ? DNA replication
B) Growth factor ? receptor ? cyclin ? Cdk ? DNA replication
C) Growth factor ? cyclin ? Cdk ? receptor ? DNA replication
D) Growth factor ? receptor ? Cdk ? cyclin ? DNA replication
B
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Most genetic engineering involves the use of ____
a. yeast and plants b. plants and E. coli c. yeast and mice d. bacteria and mice e. yeast and bacteria
During the last two months of fetal development of the female, sex hormones cause bone remodeling of the pelvic girdle that adapts it for pregnancy and birth
Indicate whether the statement is true or false
Which of the following supports development/maintenance of a polygynous system?
A. The female(s) control access to resources and maintain multiple mini-territories. B. Males and females form groups based on non-mating hierarchies and social contexts. C. The females(s) aggregate for communal offspring care, and the male(s) exploit these groupings for reproductive pursuits. D. Breeding success is low without combined efforts by more than one individual.
An organism can take advantage of energy available from both light and from organic molecules and exhibit both phototrophy and chemoorganotrophy.
Answer the following statement true (T) or false (F)