Biology

Biology, 27.08.2019 11:20, zariahirons44

How many pairs of chromosomes are in a body cell of a macaw?

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Biology, 01.08.2019 15:30, greend0719

39 points need done ! 1.which statement describes an offspring’s chromosomes? a. an offspring receives all of its chromosomes from its mother. b. each parent gives a full copy of chromosomes to the offspring. c. one chromosome in each pair comes from each parent. d. the father gives all of his chromosomes to the offspring. 2.what is the chromosome theory of inheritance? a. codominant genes combine to form new hybrids. b. genes are carried from parents to offspring on chromosomes. c. hybrid pairs of chromosomes combine to form offspring. d. chromosomes are carried from parents to offspring on hybrids. 3.what determines the genetic code? a. the number of guanine and cytosine bases in a chromosome b. the order of nitrogen bases along a gene c. the order of amino acids in a protein d. the number of nitrogen bases in a dna molecule 4.when sex cells combine to produce offspring, each sex cell will contribute a. half the number of chromosomes in body cells b. one-fourth the number of chromosomes in body cells c. the normal number of chromosomes in body cells d. twice the number of chromosomes in body cells 5.a mutation is harmful to an organism if it a. reduces the organism’s chances for survival b. makes the organism better able to avoid predators c. changes the dna of the organism d. changes the phenotype of the organism 6. which describes a mutation? a. if it occurs in a body cell, the cell cannot continue to divide b. if it occurs in a sex cell, it can be passed on to an offspring c. if it occurs in a body cell, it can be passed on to an offspring d. if it occurs in a sex cell, the cell automatically dies 7.sex cells have body cells. a. twice as many chromosomes as b. one-fourth the number of chromosomes as c. the same number of chromosomes as d. half as many chromosomes as 8.which describes a sex cell? a. acquires 12 pairs of chromosomes from the parent cell b. has all of the chromosomes that are present in the parent cell c. receives one chromosome from each pair in the parent cell d. gets half of the pairs of the chromosomes from the parent cell 9. what happens during meiosis? a. each sex cell copies itself to form four new chromosomes. b. chromosome pairs remain together when new sex cells are formed. c. chromosome pairs separate and are distributed into new sex cells. d. two sex cells combine to form a single new cell. 10. which describes meiosis ii? a. the chromosomes pairs move to opposite ends of the cell. b. the chromosomes move to the center of the cell. c. two new cells are formed with half the number of chromosomes. d. every chromosome in the parent cell is copied.

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Biology, 01.08.2019 15:30, ijade07

50 points need done ! 1.which statement describes an offspring’s chromosomes? a. an offspring receives all of its chromosomes from its mother. b. each parent gives a full copy of chromosomes to the offspring. c. one chromosome in each pair comes from each parent. d. the father gives all of his chromosomes to the offspring. 2.what is the chromosome theory of inheritance? a. codominant genes combine to form new hybrids. b. genes are carried from parents to offspring on chromosomes. c. hybrid pairs of chromosomes combine to form offspring. d. chromosomes are carried from parents to offspring on hybrids. 3.what determines the genetic code? a. the number of guanine and cytosine bases in a chromosome b. the order of nitrogen bases along a gene c. the order of amino acids in a protein d. the number of nitrogen bases in a dna molecule 4.when sex cells combine to produce offspring, each sex cell will contribute a. half the number of chromosomes in body cells b. one-fourth the number of chromosomes in body cells c. the normal number of chromosomes in body cells d. twice the number of chromosomes in body cells 5.a mutation is harmful to an organism if it a. reduces the organism’s chances for survival b. makes the organism better able to avoid predators c. changes the dna of the organism d. changes the phenotype of the organism 6. which describes a mutation? a. if it occurs in a body cell, the cell cannot continue to divide b. if it occurs in a sex cell, it can be passed on to an offspring c. if it occurs in a body cell, it can be passed on to an offspring d. if it occurs in a sex cell, the cell automatically dies 7.sex cells have body cells. a. twice as many chromosomes as b. one-fourth the number of chromosomes as c. the same number of chromosomes as d. half as many chromosomes as 8.which describes a sex cell? a. acquires 12 pairs of chromosomes from the parent cell b. has all of the chromosomes that are present in the parent cell c. receives one chromosome from each pair in the parent cell d. gets half of the pairs of the chromosomes from the parent cell 9. what happens during meiosis? a. each sex cell copies itself to form four new chromosomes. b. chromosome pairs remain together when new sex cells are formed. c. chromosome pairs separate and are distributed into new sex cells. d. two sex cells combine to form a single new cell. 10. which describes meiosis ii? a. the chromosomes pairs move to opposite ends of the cell. b. the chromosomes move to the center of the cell. c. two new cells are formed with half the number of chromosomes. d. every chromosome in the parent cell is copied.

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Biology, 01.08.2019 15:30, deedee363

20 points need done ! 1.which statement describes an offspring’s chromosomes? a. an offspring receives all of its chromosomes from its mother. b. each parent gives a full copy of chromosomes to the offspring. c. one chromosome in each pair comes from each parent. d. the father gives all of his chromosomes to the offspring. 2.what is the chromosome theory of inheritance? a. codominant genes combine to form new hybrids. b. genes are carried from parents to offspring on chromosomes. c. hybrid pairs of chromosomes combine to form offspring. d. chromosomes are carried from parents to offspring on hybrids. 3.what determines the genetic code? a. the number of guanine and cytosine bases in a chromosome b. the order of nitrogen bases along a gene c. the order of amino acids in a protein d. the number of nitrogen bases in a dna molecule 4.when sex cells combine to produce offspring, each sex cell will contribute a. half the number of chromosomes in body cells b. one-fourth the number of chromosomes in body cells c. the normal number of chromosomes in body cells d. twice the number of chromosomes in body cells 5.a mutation is harmful to an organism if it a. reduces the organism’s chances for survival b. makes the organism better able to avoid predators c. changes the dna of the organism d. changes the phenotype of the organism 6. which describes a mutation? a. if it occurs in a body cell, the cell cannot continue to divide b. if it occurs in a sex cell, it can be passed on to an offspring c. if it occurs in a body cell, it can be passed on to an offspring d. if it occurs in a sex cell, the cell automatically dies 7.sex cells have body cells. a. twice as many chromosomes as b. one-fourth the number of chromosomes as c. the same number of chromosomes as d. half as many chromosomes as 8.which describes a sex cell? a. acquires 12 pairs of chromosomes from the parent cell b. has all of the chromosomes that are present in the parent cell c. receives one chromosome from each pair in the parent cell d. gets half of the pairs of the chromosomes from the parent cell 9. what happens during meiosis? a. each sex cell copies itself to form four new chromosomes. b. chromosome pairs remain together when new sex cells are formed. c. chromosome pairs separate and are distributed into new sex cells. d. two sex cells combine to form a single new cell. 10. which describes meiosis ii? a. the chromosomes pairs move to opposite ends of the cell. b. the chromosomes move to the center of the cell. c. two new cells are formed with half the number of chromosomes. d. every chromosome in the parent cell is copied.

Answers: 1

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Biology, 27.08.2019 10:10, tre1124

How many pairs of chromosomes are in a body cell of a macaw

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