Put in the proper hierarchical order for embryo development these drosophila genes:
A. Gap Genes
B. Segment Polarity Genes
C. Hox Genes
D. Pair rule genes
E. Maternal effect genes
Give this one a try later!
E, A, D, B, C
Which of the following were limitations for the first land plants because they lacked
vasculature?
A. They had to live in moist environments
B. It meant they were size limited
C. It meant they had aquatic sperm
D. It limited root growth
, Give this one a try later!
A&B
Maternal-effect genes:
A. are expressed by the mother.
B. affect maternal phenotype.
C. affect offspring phenotype.
D. are expressed by the mother and affect maternal phenotype.
E. are expressed by the mother and affect offspring phenotype.
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E
In fruit flies, maternal-effect gene mRNA (pick all that are true)
A. are transcribed by the mother
B. alter the maternal phenotype
C. affect offspring phenotype
D. are translated by the mother
E. are translated by the offspring
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A,C&E
The last common ancestor of most animals had 1 Hox cluster. Many teleost fishes (ray
finned, bony fishes encompassing most extant fish species) have eight Hox clusters
whereas most land vertebrates (tetrapods) have 4 and drosophila has 1. One well
A. Gap Genes
B. Segment Polarity Genes
C. Hox Genes
D. Pair rule genes
E. Maternal effect genes
Give this one a try later!
E, A, D, B, C
Which of the following were limitations for the first land plants because they lacked
vasculature?
A. They had to live in moist environments
B. It meant they were size limited
C. It meant they had aquatic sperm
D. It limited root growth
, Give this one a try later!
A&B
Maternal-effect genes:
A. are expressed by the mother.
B. affect maternal phenotype.
C. affect offspring phenotype.
D. are expressed by the mother and affect maternal phenotype.
E. are expressed by the mother and affect offspring phenotype.
Give this one a try later!
E
In fruit flies, maternal-effect gene mRNA (pick all that are true)
A. are transcribed by the mother
B. alter the maternal phenotype
C. affect offspring phenotype
D. are translated by the mother
E. are translated by the offspring
Give this one a try later!
A,C&E
The last common ancestor of most animals had 1 Hox cluster. Many teleost fishes (ray
finned, bony fishes encompassing most extant fish species) have eight Hox clusters
whereas most land vertebrates (tetrapods) have 4 and drosophila has 1. One well
