Which statement about Down syndrome is true? A. Trisomy of chromosome 21 is well tolerated enough to give rise to fully‑developed individuals. B. The probability of a child having Down syndrome does not correlate with maternal age. C. The primary cause for Down syndrome is the Robertsonian translocation. D. Down syndrome never runs in the family, as it is based on a random aneuploidy event.

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

This connective tissue consists of large round densely packed cells with the nucleus pushed to one side.

Me asap i need during photosynthesis, the following reaction takes place: carbon dioxide + water + light energy → sugar + oxygen during cellular respiration, the following reaction takes place: sugar + oxygen → carbon dioxide + water + chemical energy given this information, how are photosynthesis and cellular respiration related? question 2 options: a the products of photosynthesis are the reactants of cellular respiration. b photosynthesis and cellular respiration both start with the same materials. c photosynthesis and cellular respiration both produce the same materials. d the same type of energy is found in both photosynthesis and cellular respiration.