Which of these sentences describe sources and preservation of genetic variation? Select all that apply.
A. Antibiotic resistance in bacterial populations is caused by natural selection of bacteria that inherit mutations that make them resistant to the antibiotics.
B. If a cell has two pairs of chromosomes, four kinds of gametes are possible as a result of reshuffling of chromosomes during meiosis.
C. Crossing-over causes a shuffling of allele combinations during meiosis as the alleles from each parent form new combinations on homologous chromosomes.
D. During mitosis in eukaryotes, the sister chromatids are separated and distributed to two daughter cells.
E. When two bacteria are linked during conjugation, the donor cell passes DNA to the recipient cell which causes genetic recombination.
Answers: 1
Biology, 21.06.2019 23:10
Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%
Answers: 1
Biology, 22.06.2019 01:30
Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?
Answers: 2
Biology, 22.06.2019 04:30
Why is it incorrect to say that mitochondria function only as energy factories with cell
Answers: 1
Biology, 22.06.2019 10:00
An animal cell (left) and a plant cell (right) are shown.which organelle, labeled x in the diagram, is found in both plant and animal cells?
Answers: 1
Which of these sentences describe sources and preservation of genetic variation? Select all that app...
English, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30
Chemistry, 10.12.2020 17:30
History, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30
Mathematics, 10.12.2020 17:30