Development of a photoreceptor, a sensory cell in the eye that reacts to the presence of light. They usually contain a pigment that undergoes a chemical change when light is absorbed, thus stimulating a nerve.

Catalysis of the reaction: ATP + deamido-NAD+ + NH3 = AMP + diphosphate + NAD+.

Catalysis of the hydrolysis of P(1),P(4)-bis(5'-nucleosyl)tetraphosphate into two nucleotides.

dosage compensation, by hypoactivation of X chromosome

Compensating for the two-fold variation in X:autosome chromosome ratios between sexes by an inactivation of a proportion of genes on both of the X chromosomes of the XX sex, leading to a decrease, of half, of the levels of gene expression from these chromosomes.

The movement of a cell or organism in response to a stimulus in which the rate of movement depends on the intensity (rather than the direction) of the stimulus.

Catalysis of the cleavage of a beta-linked aspartic residue from the N-terminus of a polypeptide.

A response by a motile cell to a soluble chemical that involves an increase or decrease in speed (positive or negative orthokinesis) or of frequency of movement or a change in the frequency or magnitude of turning behavior (klinokinesis).

The formation from simpler components of any purine nucleoside, one of a family of organic molecules consisting of a purine base covalently bonded to a sugar ribose (a ribonucleoside) or deoxyribose (a deoxyribonucleoside).

The breakdown into simpler components of any ribonucleoside, a nucleoside in which purine or pyrimidine base is linked to a ribose (beta-D-ribofuranose) molecule.

The formation from simpler components of any ribonucleoside, a nucleoside in which purine or pyrimidine base is linked to a ribose (beta-D-ribofuranose) molecule.

Any process that reduces the rate of growth of all or part of an organism.

negative regulation of mitotic recombination

negative regulation of recombination within rDNA repeats

Any process that inhibits or decreases the rate of DNA recombination during mitosis.

negative regulation of eye photoreceptor cell development