Fourth Quarter Assessment in Science 8

Front

What does homozygous recessive mean in genetics?

Back

An organism is homozygous recessive if it has two identical recessive alleles for a trait, represented as 'aa'.

Front

What is the main difference between mitosis and meiosis?

Back

Mitosis produces two identical daughter cells, while meiosis produces four genetically diverse haploid cells.

Front

What occurs in the stomach during digestion?

Back

Juices mix with food, and the stomach muscles contract to break it down.

Front

What is the significance of meiosis?

Back

Meiosis is important for genetic variability and the formation of sex cells (gametes).

Front

What is a key outcome of meiosis?

Back

Meiosis reduces the chromosome number by half, resulting in haploid cells.

Front

What is the role of homologous chromosomes in meiosis?

Back

Homologous chromosomes pair up during meiosis, allowing for genetic recombination.

Front

What is asexual reproduction?

Back

Asexual reproduction is a mode of reproduction that does not involve the fusion of gametes, resulting in offspring genetically identical to the parent.

Front

What is genetic variability?

Back

Genetic variability refers to the diversity in gene frequencies within a population, which is increased through meiosis.

Front

What is the function of the small intestine in digestion?

Back

The small intestine is where most digestion and nutrient absorption occurs after food leaves the stomach.

Front

What is a diploid cell?

Back

A diploid cell contains two complete sets of chromosomes, one from each parent, represented as '2n'.