Topic 3/10 - Pictures/Diagrams Flashcards Preview

IB Biology HL > Topic 3/10 - Pictures/Diagrams > Flashcards

Flashcards in Topic 3/10 - Pictures/Diagrams Deck (18)
Loading flashcards...
1
Q

Label the following diagram of a chromosome

A
2
Q

Identify the stage of meiosis in the following picture

A

Anaphase II

3
Q

Identify the stage of meiosis in the following picture

A

Metaphase II

4
Q

Identify the stage of meiosis in the following picture

A

Prophase I

5
Q

Identify the stage of meiosis in the following picture

A

Telophase II

6
Q

Identify the stage of meiosis in the following picture

A

Anaphase I

7
Q

Identify the stage of meiosis in the following picture

A

Metaphase I

8
Q

Identify the stage of meiosis in the following picture

A

Telophase I

9
Q

Identify the stage of meiosis in the following picture

A

Prophase II

10
Q

Draw a diagram to show the process of meiosis

A
11
Q

Consider the following were crossed:

  1. YY RR (yellow and round)
  2. yy rr (green and wrinkled)

The resulting F1 generation is then crossed once again with each other. Construct a Punnett square to represent the situation.

A
12
Q

In sheep, the allele for black wool (B) is dominant over the allele for white wool (b).
Similarly, the allele for horns (H) is dominant over the allele for being hornless (h).
Pure breeding horned sheep with black wool were crossed with pure breeding hornless sheep with white wool.

(a) State the genotype and the phenotype of the F1 individuals produced as a result of this cross.
(b) Two F1 offspring were mated together. Calculate the expected ratio of phenotypes in the F2 generation.

A
13
Q

In cats, the allele for grey fur (G) is dominant over the allele for beige fur (g).
The allele for a solid coat (S) is dominant over the allele for a striped coat (s).
A pure breeding solid, beige cat is crossed with a pure breeding striped, grey cat.
(a) State the genotype and the phenotype of the F1 individuals produced as a result of this cross.
(b) Calculate the phenotypes resulting from a cross between a pure breeding solid, beige cat and an F1 offspring.

A
14
Q

Consider a red flower and a white flower breed. The colour of the flowers, red and white, are codominant alelles.

a) What is the colour of the F1 generation?
b) Two flowers from the F1 generation are crossed. Draw the Punnett square.

A
15
Q

Two beans, yy (green) and Yy (yellow) are crossed, where Y is the dominant allele for yellow and y is the ressessive allele for green.

a) Draw the Punnett square.
b) What fraction of the beans will be yellow?

A

a) Refer to picture
b) 1/2 (50%)

16
Q

Two flowers, Bb and Bb are crossed, where B is the dominant allele for blue and b is the resessive allele for white.

a) Draw the Punnett square
b) What is the expected ratio of blue:white flowers?

A

a) Refer to picture
b) 3 blue:1 white

17
Q

Consider two beans, AaBb, are crossed with each other.

A and B are gene-linked.

a and b are gene-linked.

Construct a Punnett square that represents this situation.

A
18
Q

Hemophilia is a sex-linked disorder. It is x-linked recessive.

The father is unaffected and the mother is a carrier.

a) Construct a Punnett square to represent the situation
b) What are the overall chances that the child will be inflicted with (ie. suffer the symptoms of) hemophilia?
c) Assuming the child is male, what are the chances that he will be inflicted?
d) Assuming the child is female, what are the chances that she will be inflicted?

A

a) Refer to picture
b) 1/4
c) 1/2
d) 0