Which of the following is true about DNA mutations?
A. Mutations can only be caused by environmental factors such as radiation
B. Mutations can only occur in the body of an organism
C. Mutations can only occur in the sex cells of an organism
D. Mutations can spontaneously occur during DNA replication
Answers: 3
Biology, 22.06.2019 09:40
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
Answers: 1
Biology, 22.06.2019 11:00
Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.
Answers: 1
Biology, 22.06.2019 12:20
Which organ controls breathing? lungs alveoli heart diaphragm
Answers: 2
Which of the following is true about DNA mutations?
A. Mutations can only be caused by environ...
A. Mutations can only be caused by environ...
English, 12.07.2021 16:40
Mathematics, 12.07.2021 16:40
Mathematics, 12.07.2021 16:40
Spanish, 12.07.2021 16:40
Biology, 12.07.2021 16:40
Social Studies, 12.07.2021 16:40
World Languages, 12.07.2021 16:40
Mathematics, 12.07.2021 16:40
Physics, 12.07.2021 16:50
Mathematics, 12.07.2021 16:50
Mathematics, 12.07.2021 16:50