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Questions and Answers
Which of the following best describes a homozygous genotype?
Which of the following best describes a homozygous genotype?
- Having two different alleles
- Having two identical alleles (correct)
- Having a heterozygous genotype
- Having a dominant and a recessive allele
In a monohybrid cross, how many possible types of crosses are there?
In a monohybrid cross, how many possible types of crosses are there?
- 4
- 2
- 1
- 3 (correct)
In pea-seed color, which allele is dominant?
In pea-seed color, which allele is dominant?
- R
- r
- Y (correct)
- y
What is the phenotype ratio of a heterozygous tall pea plant crossed with a heterozygous tall pea plant?
What is the phenotype ratio of a heterozygous tall pea plant crossed with a heterozygous tall pea plant?
Which of the following is true about sex determination in most mammals, including humans?
Which of the following is true about sex determination in most mammals, including humans?
What is the term for crosses involving two characteristics at a time?
What is the term for crosses involving two characteristics at a time?
According to Mendel's second law of independent assortment, during gamete formation, any member of a pair of factors has an equal chance of entering a gamete with...
According to Mendel's second law of independent assortment, during gamete formation, any member of a pair of factors has an equal chance of entering a gamete with...
What happens when genes are located on the same chromosome?
What happens when genes are located on the same chromosome?
Which type of mutation involves a change in chromosome number or alteration of genes within a chromosome?
Which type of mutation involves a change in chromosome number or alteration of genes within a chromosome?
What is the result of having 47 chromosomes, with an extra 'number 21' in every body cell?
What is the result of having 47 chromosomes, with an extra 'number 21' in every body cell?
What is the main cause of variation among individuals of a species?
What is the main cause of variation among individuals of a species?
Which type of mutation involves a change in bases in the gene, altering the amino acid sequence of the protein controlled by that gene?
Which type of mutation involves a change in bases in the gene, altering the amino acid sequence of the protein controlled by that gene?
Which of the following best describes the phenomenon of crossing over during meiosis?
Which of the following best describes the phenomenon of crossing over during meiosis?
What is the term for genes found on the X or Y chromosome?
What is the term for genes found on the X or Y chromosome?
Which of the following best describes the term 'carrier' in the context of genetic conditions?
Which of the following best describes the term 'carrier' in the context of genetic conditions?
Which of the following statements about non-nuclear inheritance is true?
Which of the following statements about non-nuclear inheritance is true?
Which of the following best describes the Law of Segregation according to Mendel's First Law?
Which of the following best describes the Law of Segregation according to Mendel's First Law?
What is the term for the physical expression of the genotype or genotype plus environment?
What is the term for the physical expression of the genotype or genotype plus environment?
Which of the following best describes the concept of dominant and recessive alleles?
Which of the following best describes the concept of dominant and recessive alleles?
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