Theory

CH17 - INHERITANCE

In rabbits, the allele for dark fur, R, is dominant to the allele for white fur, r.The diagram shows a cross between a rabbit with dark fur and a rabb...

2011 Summer

3

Theory

CH17 - INHERITANCE

What is always found in female gametes and may be found in male gametes?A. one X chromosomeB. one Y chromosomeC. two X chromosomesD. one X chromosome ...

2011 Summer

2

Theory

CH17 - INHERITANCE

Haemoglobin is a large protein molecule. The structure of each haemoglobin molecule is controlled by a gene that has two alleles:• $Hb^A$ codes for ...

2011 Winter

2

Theory

CH17 - INHERITANCE

How does a haploid nucleus differ from a diploid nucleus of the same species? A It has different genes. B It has fewer chromosomes. C It has more a...

2012 Winter

1

Theory

CH17 - INHERITANCE

The diagram shows a maize (corn) cob with purple and yellow fruits. Purple (P) is dominant to yellow (p). What are the genotypes of the parent maize p...

2009 Summer

2

Theory

CH17 - INHERITANCE

A pure-breeding white mouse was crossed with a pure-breeding black mouse. All their offspring were black.Then, one of the offspring was bred with a pu...

2012 Winter

1

Theory

CH17 - INHERITANCE

In some animals, B is the allele for normal skin (without spots) and b is the allele for spotted skin.A pair of these animals has 37 offspring, 18 wit...

2010 Winter

1

Theory

CH17 - INHERITANCE

Which type of reproduction and which type of cell division produces nuclei with half the number of chromosomes?[Table_1]type of reproductiontype of ce...

2010 Winter

2

Theory

CH17 - INHERITANCE

What is true of the chromosomes present in the daughter nuclei after meiosis and after mitosis?[Table_1]

2009 Summer

2

Theory

CH17 - INHERITANCE

What is a mutation?A a change in a gene or chromosomeB a condition caused by a recessive alleleC a process used in genetic engineeringD a type of ...

2009 Summer

1

Theory

CH14 - CO-ORDINATION AND RESPONSE

(a) Fig. 1.1 is a diagram showing the position of some organs in the human body. Some of the organs shown in Fig. 1.1 are endocrine glands. Table 1.1...

2021 Spring

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 2.1 is a diagram of a prokaryotic cell. Fig. 2.1 (i) State one visible feature in Fig. 2.1 that identifies this cell as a prokaryotic cel...

2021 Spring

1

Theory

CH9 - TRANSPORT IN ANIMALS

(a) The activity of the heart can be monitored using different methods.Fig. 3.1 shows two ECG traces. One trace was recorded when the person was at re...

2021 Spring

3

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

(a) A leaf can be described as an organ.Define the term organ............................................................................................

2021 Spring

2

Theory

CH10 - DISEASES AND IMMUNITY

(a) Measles is a transmissible disease.The percentage of the population that were vaccinated against measles in a country was determined.The number of...

2021 Spring

1

Theory

Food Webs

(a) Fig. 6.1 shows a food web. (i) State the number of trophic levels in the food web in Fig. 6.1. [1] (ii) State the name of one organism that fe...

2021 Spring

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a characteristic of all living organisms?

2021 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The table shows a section of DNA taken from four different organisms.[Table_1]Which two organisms are the most distantly related to each other?

2021 Summer

1

MCQ

Animal Kingdom - Arthropods and Vertebrates

Scientists discover a new species of animal. It has a segmented body with two pairs of legs on each segment. To which group of animals does this new s...

2021 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a single-celled organism called *Euglena*. Which labelled structures would also be found in an animal cell?

2021 Summer

1