5
The model shows a mutation to a partial sequence of
bases in a gene.
... CGT ATA TC
CTAT GCC CCT GAC...
TATC
Which type of mutation does the model demonstrate?
A
Deletion
B
Insertion
ะก
Substitution
D
Translocation
.
e to search
O
c
L M
99+
70%
the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10โ14 days, and menstruation occurs.
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
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