Biology, 15.04.2021 07:00 mohayon2020
In one family, the mother was diagnosed with breast cancer. Mom was
tested to find out if she carried the gene for breast cancer (BRCA1). The
test was negative. In addition to lacking the gene for breast cancer, the
mother had not been exposed to any carcinogens. Select the biological
event below that is the most likely cause of your mother's breast cancer.
Mutations resulting from environmental factors
Mutations resulting from errors in DNA replication
New genetic combinations during cell division
Answers: 2
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Which type of respiration takes place when there is no oxygen present
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Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?
Answers: 2
In one family, the mother was diagnosed with breast cancer. Mom was
tested to find out if she carri...
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