Biology

Biology, 31.07.2019 06:00, lindamillscotton90

What is it called when a cell has two copies of each chromosome. in short sentence

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Biology, 25.06.2019 11:00, shainaanderson24

Down syndrome, the most common genetic condition in the united states, is also called trisomy 21. what does this mean? a. a person with down syndrome has two copies of chromosome 21 but they're fused together. during early embryo development, these chromosomes didn't segregate properly. b. a person with down syndrome has only one copy of chromosome 21 instead of two copies. either the sperm cell or the egg cell was lacking this chromosome. c. a person with down syndrome has three copies of chromosome 21 instead of two copies. an extra chromosome 21 was present in either the sperm or the egg cell. d. a person with down syndrome has three copies of chromosome 21 instead of two copies. two sperm cells simultaneously fertilized the egg cell.

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Biology, 29.06.2019 08:40, candlelight45

Down syndrome, the most common genetic condition in the united states, is also called trisomy 21. what does this mean? a. a person with down syndrome has only one copy of chromosome 21 instead of two copies. either the sperm cell or the egg cell was lacking this chromosome. b. a person with down syndrome has two copies of chromosome 21 but they're fused together. during early embryo development, these chromosomes didn't segregate properly. c. a person with down syndrome has three copies of chromosome 21 instead of two copies. an extra chromosome 21 was present in either the sperm or the egg cell. d. a person with down syndrome has three copies of chromosome 21 instead of two copies. two sperm cells simultaneously fertilized the egg cell.

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Biology, 13.07.2019 00:30, damariush567

Assume that during meiosis i, none of the c chromosomes disjoin at metaphase, but they separate into dyads (instead of monads) during meiosis ii. each resultant gamete participated in fertilization with a normal haploid gamete. what combinations will result? check all that apply. check all that apply. two copies of chromosome a, one copy of chromosome b, three copies of chromosome c two copies of chromosome a, two copies of chromosome b, two copies of chromosome c two copies of chromosome a, two copies of chromosome b, one copy of chromosome c two copies of chromosome a, two copies of chromosome b, three copies of chromosome c one copy of chromosome a, two copies of chromosome b, three copies of chromosome c two copies of chromosome a, two copies of chromosome b two copies of chromosome a, two copies of chromosome b, four copies of chromosome c two copies of chromosome a, two copies of chromosome b, five copies of chromosome c

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Biology, 08.10.2019 02:10, chantianabess36

The dna of every eukaryotic cell is stored in one or more located in the . 2. chromosomes contain most of the cell's which acts as the molecule of heredity. 3. a duplicated chromosome remains tightly paired with its partner at a region called the . 4. before a cell divides, it copies all of its chromosomes. while the two copies of a chromosome are attached they are called . 5. dna and protein together form a complex called .

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