Master GCSE Biology

MS1:

- Structure in the nucleus that carries genes (1)

MS2:

- Mitosis produces two identical daughter cells, while meiosis produces four non-identical daughter cells (1)

- Mitosis occurs in body cells, while meiosis occurs in sex cells (gametes) (1)

MS3:

- Increases the chances of survival in changing environments (1)

- Allows species to adapt to new challenges (1)

- Provides raw material for evolution (1)

MS4:

- Process by which organisms with favorable inherited variations are more likely to survive and reproduce (1)

MS5:

- Cross-breeding individuals with desirable traits (1)

- Selecting offspring with the desired traits (1)

- Repeating the process over several generations (1)

MS6:

- One of two or more alternative forms of a gene (1)

MS7:

- Hh x HH

- Gametes: H, h x H, H

- Genotypes: HH, HH, Hh, Hh

- Phenotypes: 2 dark hair (75%), 2 light hair (25%)

MS8:

- Mutations create new alleles (1)

- Some mutations provide advantages, increasing the survival and reproduction of individuals (1)

- This leads to the accumulation of favorable alleles in the population (1)

- Over time, this can result in the evolution of new species (1)

MS9:

- A group of similar organisms that can interbreed and produce fertile offspring (1)

MS10:

- DNA contains the genetic code that determines the characteristics of an organism (1)

- DNA is passed from one generation to the next through gametes (1)

- This ensures the continuation of genetic traits from parents to offspring (1)

- Variation in DNA sequences leads to genetic diversity and evolution (1)