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.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.

transcription is a process in which information is rewritten. it is something our cells must do, in a more specialized and narrowly defined way. in biology, transcription is the process of copying out the dna sequence of a gene in the similar alphabet of rna. it needs to happen in the nucleus because that's where the dna is. dna is always inside the nucleus unless the cell is dividing.

transcription is the first step in gene expression, which involves copying a gene's dna sequence to make an rna molecule. transcription is performed by rna polymerases. it has three stages: initiation, elongation, and termination. rna molecules must be processed after transcription in eukaryotes.

explanation:

long version:

the protein synthesis consists two processes which are, transcription and translation. transcription takes place in the nucleus. it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. transcription is the first part of the central dogma of molecular biology: dna → rna. it is the transfer of genetic instructions in dna to messenger rna (mrna). during transcription, a strand of mrna is made that is complementary to a strand of dna.  

these three stages are:

  initiation: in which   is the beginning of transcription.occuring when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

    elongation: in which is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

    termination: in which is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

synapse nervous system