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, 22.06.2019 08:30, williamsjamon0
Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino
Answers: 2
Biology, 22.06.2019 11:30, yarrito20011307
Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
Answers: 1
Biology, 22.06.2019 20:30, shymitch32
Tay-sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large, complex, undigested lipids. which cellular organelle must be involved in this condition?
Answers: 3
Biology, 22.06.2019 21:00, ineedhelp2285
What nursing actions are part of the acute respiratory distress syndrome clinical network (ardsnet) protocol?
Answers: 1
Which of these sentences describe sources and preservation of genetic variation? Select all that app...
Mathematics, 11.03.2021 23:30
Chemistry, 11.03.2021 23:30
Mathematics, 11.03.2021 23:30
Mathematics, 11.03.2021 23:30
Mathematics, 11.03.2021 23:30
Mathematics, 11.03.2021 23:30