Describe genotype as the genetic make-up of an organism and in terms of the alleles present
Describe genotype as the genetic make-up of an organism and in terms of the alleles present
1 Answer
Questions and Answers For
IGCSE Biology
322 Questions
1 Answer Describe meiosis as a reduction division in which the chromosome number is halved from diploid to haploid resulting in genetically different cells (details of the stages of meiosis are not required)
Describe meiosis as a reduction division in which the chromosome number is halved from diploid to haploid resulting in genetically different cells (details of the stages of meiosis are not required)
1 Answer State that during mitosis, the copies of chromosomes separate, maintaining the chromosome number in each daughter cell
State that during mitosis, the copies of chromosomes separate, maintaining the chromosome number in each daughter cell
1 Answer State that the exact replication of chromosomes occurs before mitosis
State that the exact replication of chromosomes occurs before mitosis
1 Answer State the role of mitosis in growth, repair of damaged tissues, replacement of cells and asexual reproduction
State the role of mitosis in growth, repair of damaged tissues, replacement of cells and asexual reproduction
1 Answer Describe mitosis as nuclear division giving rise to genetically identical cells (details of the stages of mitosis are not required)
Describe mitosis as nuclear division giving rise to genetically identical cells (details of the stages of mitosis are not required)
1 Answer State that in a diploid cell, there is a pair of each type of chromosome and in a human diploid cell there are 23 pairs
State that in a diploid cell, there is a pair of each type of chromosome and in a human diploid cell there are 23 pairs
1 Answer Describe a diploid nucleus as a nucleus containing two sets of chromosomes
Describe a diploid nucleus as a nucleus containing two sets of chromosomes
1 Answer Explain that most body cells in an organism contain the same genes, but many genes in a particular cell are not expressed because the cell only makes the specific proteins it needs
Explain that most body cells in an organism contain the same genes, but many genes in a particular cell are not expressed because the cell only makes the specific proteins it needs
1 Answer Explain how a protein is made, limited to: • the gene coding for the protein remains in the nucleus • messenger RNA (mRNA) is a copy of a gene • mRNA molecules are made in the nucleus and move to the cytoplasm • the mRNA passes through ribosomes • the ribosome assembles amino acids into protein molecules • the specific sequence of amino acids is determined by the sequence of bases in the mRNA (knowledge of the details of transcription or translation is not required)
Explain how a protein is made, limited to: • the gene coding for the protein remains in the nucleus • messenger RNA (mRNA) is a copy of a gene • mRNA molecules are made in the nucleus and move to the cytoplasm • the mRNA passes through ribosomes • the ribosome assembles amino acids into … Read more
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