Question

1. In humans, the autosomal gene allowing us to see the color blue (symbolized as B) is dominant over a
different version of the same gene (b) which causes us to be color blind for this color. A person with
normal vision will have the genotype
A) Bb
B) BB or bb
C) BB
D) BB or Bb
E) bb

2. Which of these cells can do meiosis in animals?
A) germ line cells
B) somatic cells
C) diploid cells
D) B and C above
E) A, B, and C above

3. The flowering plants (tulips, trees, grass, etc.) that you easily see are
A) examples of sporophytes
B) either gametophytes or sporophytes
C) examples of gametophytes
D) asexually reproducing organisms
E) A and D

4. Which BEST describes an allele of a gene?
A) they are recessive forms of a gene
B) they are dominant forms of a gene
C) they are a mutation of a genes
D) they are “wildtype” varieties of genes
E) they are the different versions of a gene found in populations

5. The starting generation of a series of crosses is called the generation.
A) A
B) P
C) F1
D) F2
E) H

Answer 1

Q 1. ANSWER: Dominant allele can express both in homozygous and heterozygous condition. So

The answer is D. BB or Bb

Q 2. ANSWER: somatic cells undergo mitosis and proliferate. Diploid cells of germ cells can undergo meiosis to produce gametes but generally they can also perform mitosis.Germline cells can undergo meiosis to produce germ cells. So the option

E. A, B and C can perform meiosis

Q 3. ANSWER: Flower which we can see easily in plants are examples of sporophyte. Actual gametophyte in these plants are ovules inside the ovary of flower.

So the option A is correct

Q 4. ANSWER: An allele is defined as different forms of gene that expresses same character. Example for phenotype of height of a plant two alleles are Tall as dominant and dwarf as recesive .

So the option E is correct.

Q 5. ANSWER: first generation of offsprings produced after first cross is called F1 generation.

So the option C is correct