Which statement is true regarding the way in which sex chromosomes are passed on to offspring? Females can pass only Y chromosomes to their offspring. Females can pass either an X or a Y chromosome to their offspring. Males can pass either an X or a Y chromosome to their offspring. Males can pass only Y chromosomes to their offspring.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

What occurs to the cell during mitosis

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a. the offspring are more likely to have freckles. b. the offspring are more likely to have no freckles. c. the likelihood of the offspring having freckles and not having freckles is the same. d. the likelihood of the offspring having freckles and not having freckles cannot be determined.