The answer is B. a nucleus.
Prokaryotic cells do not have a nucleus. They have ribosomes, a cell membrane, a cell wall, and DNA, but lack a nucleus. Prokaryotes also don't have mitochondria or chloroplasts and generally lack organelles.
Answer:
The probability would be 0%
Answer:
She has two recessive color blindness alleles.
Explanation:
The expression of arecessive phenotype requires both X chromosomes of the female to each contain a recessive color blindness allele. This genotype would the determine the mother would be color blind.
Answer:
a = 9
Explanation:
5(a + 4) - 6a + 1 = 12
5a + 20 - 6a + 1 = 12
5a - 6a + 20 + 1 = 12
-1a + 21 = 12
-21 -21
--------------------------------
-1a = -9
/-1 /-1
---------------------------------
a = 9
Threats to our native temperate grasslands include clearing, nutrient enrichment, inappropriate grazing, altered burning practices, neglect, fragmentation, tree planting and the invasion of exotic weed species like Serrated Tussock, African Lovegrass, St John's Wort and Phalaris.