The diploid number of chromosomes in a horse is 64.
In a male horse, meiosis takes place in the
Put a cross ( ☒ ) in the box next to your answer.
☐ A liver
☐ B kidneys
☐ C testes
☐ D stomach
State the number of chromosomes in a horse egg cell.
State the number of daughter cells produced when one cell divides by meiosis.
DNA is made of two strands held together by complementary base pairs.
DNA is a polymer made up of repeating units called
Put a cross ( ☒ ) in the box next to your answer.
☐ A amino acids
☐ B glucose molecules
☐ C nucleotides
☐ D fatty acids
The table shows the sequence of bases on one strand of a short section of DNA.
Complete the table to show the sequence of bases on strand 2.
| Strand 1 | T | A | C | G | G | A | T | C |
|---|---|---|---|---|---|---|---|---|
| Strand 2 |
Name the weak bonds that join a base on one strand to a base on the other strand.
State what is meant by the genome of an organism.
Which of these best describes a gene?
Put a cross ( ☒ ) in the box next to your answer.
☐ A all of the DNA found in a nucleus
☐ B a section of DNA that codes for a specific protein
☐ C a long molecule made of many amino acids
☐ D a structure that contains two identical chromatids
