Germination of the embryo within the seed does not take place until
A. the seed has passed through the gut of an animal.
B. water and oxygen reach the embryo.
C. day length is appropriate for the plant.
D. any amount of sunlight strikes the seed.
Answer: B
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Dna _____
a. guides growth and development b. is the basis of traits c. is transmitted from parents to offspring d. all of these
The gene pool refers to all of the genetic information within a
A) cell. B) individual. C) population. D) species.
What would a person born without an epiglottis not be able to do?
A) digest fats B) digest proteins C) absorb the products of digestion D) swallow food without a high risk of choking
Which of the following is an example of genomic imprinting in humans?
A) The maternal and paternal alleles of a gene pair are both expressed. B) One of the two X-chromosomes in females is randomly expressed and the other is repressed. C) Human males have only one Y-chromosome and one X-chromosome. D) A random pattern of autosomal allele inactivation is observed. E) In some allele pairs, only the paternal sourced allele is expressed, and in others, only the maternal sourced allele is expressed.