A. Meiosis 1. What are the two processes that allow meiosis to give genetically
ID: 3166736 • Letter: A
Question
A. Meiosis
1. What are the two processes that allow meiosis to give genetically unique daughter cells and what happens in each process to create genetic diversity?
B. Genetics
2. What is the difference between a gene and an allele?
3. What is the difference between phenotype and genotype?
4. How come there are 3 genotypes for a single trait but only 2 phenotypes?
C. DNA and Protein Synthesis
5. What is DNA? What is its structure…what is it made of (the 3 parts of its subunit)?
6. What happens in each of the 2 steps in DNA replication?
Please do not attempt if you are not going to do all the questions. Kindly looking for help. TIA,
Explanation / Answer
1. What are the two processes that allow meiosis to give genetically unique daughter cells and what happens in each process to create genetic diversity?
The crossing over at pachytene stage of meiosis I and chromatid segregation at Anaphase II gives unique daughter cells. During pachytene chromosomal recmobinanation occurs due to crossover. During Anahphase II, the recombinant chromatids segregated from the non recombinant chromatids.
2. What is the difference between a gene and an allele?
Gene is part of DNA which can be expressed as phenotypic chatacter or enzyme or as RAA.
The alternative forms of these gene is reffered as alleles.
3. What is the difference between phenotype and genotype?
The observable character of an organism is reffered as phenotypes, the genes which is responsbile for this phenotype is reffered as genotype.
4. How come there are 3 genotypes for a single trait but only 2 phenotypes?
As the dominant allele can express her character in both homo and heterozygous conditions, where as the recesseive allele can expresse her character only in homozgyous conditions, so, for 3 different genotypes for single train only 2 phenotypes of possbile.
For Eg. TT - Tall, Tt - Tall, tt - dwarf
ACCORDING TO CHEGG GUIDELINES WE HAVE TO ANSWER ONE QUESTION AT A TIME. POST THE REST AS SPERATE QUESTIONS, THEN I CAN HELP YOU.