Answers: 1
Biology, 21.06.2019 14:50
What must happen before meiosis can begin? a. four gametes must be produced b. the four tetrads must be pulled apart c. dna doubles and produces sister chromatids d. the cell membrane pinches together
Answers: 1
Biology, 22.06.2019 08:30
What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
Answers: 2
Biology, 22.06.2019 09:20
Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell
Answers: 2
Biology, 22.06.2019 09:30
Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.
Answers: 1
6. If a cell has a nucleus, then it is a...
Biology, 10.01.2020 10:31
English, 10.01.2020 10:31
Biology, 10.01.2020 10:31
Biology, 10.01.2020 10:31
English, 10.01.2020 10:31
Mathematics, 10.01.2020 10:31
Geography, 10.01.2020 10:31
Biology, 10.01.2020 10:31