What structures in amoeba and paramecium also occur in plant cells?

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment