Question

1. how do protected areas like national parks contribute to conservation?

a. by promoting over hunting of protected species
b. by providing safe havens for endangered species
c. by introducing invasive species deliberately
d. by encouraging habitat destruction

1. what is the significance of independent assortment in meiosis?

a. it ensures that all chromosomes are identical.
b. it produces diploid cells from haploid cells.
c. it prevents genetic diversity in offspring.
d. it increases genetic variation by randomly distributing chromosomes to gametes.

1. in a genetic cross, what does a recessive allele require to be expressed?

a. two recessive alleles
b. at least one dominant allele
c. a heterozygous genotype
d. a homozygous dominant genotype

Explanation:

1. National parks are meant to conserve nature. They provide safe - havens for endangered species to live and reproduce, which is a key conservation goal. Over - hunting, introducing invasive species, and habitat destruction are all negative for conservation.
2. Independent assortment in meiosis is the random distribution of chromosomes to gametes. This increases genetic variation in offspring as different combinations of parental chromosomes can be passed on. It does not ensure identical chromosomes, produce diploid cells from haploid cells (that's fertilization), or prevent genetic diversity.
3. A recessive allele is only expressed when an organism has two copies of the recessive allele (homozygous recessive). A dominant allele would mask a recessive one, and heterozygous genotypes express the dominant trait.

Answer:

1. b. By providing safe havens for endangered species
2. d. It increases genetic variation by randomly distributing chromosomes to gametes
3. a. Two recessive alleles