A man who carries an x-linked allele will pass it on to

A couple who does not have cystic fibrosis have children with cystic fibrosis.  What is true about the parents’ genotype?

In certain plants, tall is dominant to short.  If a heterozygous plant is crossed with a homozygous tall plant, what is the probability that the offspring will be short?

A normally pigmented man married a normally pigmented woman. Their second child is an albino.  What is the genotype of the man? What is the genotype of the woman?

The diagram below shows a Bohr model of an atom of nitrogen.According to the model, how many valence electrons does the atom have?

6. The function f is one-to-one. Find the inverse. Remember notation.

23. Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y.

14. An initial investment of $1830 is appreciated for 18 years in an account that earns 4.5% interest, compounded continuously. Find the amount of money in the account at the end of the period.  (Round to the nearest cent.)

Preposizioni semplici. Choose the correct preposition.     1. Andiamo [1] pizzeria domani?   2. Noi veniamo  [2] Roma.   3. Io studio [3] passare l’esame.   4. Stasera esco [4] Luisa.   5. Sono stanca, vado [5] casa.   6. Questo libro è [6] Maria.   7. Non so scegliere [7] cioccolato e crema, mi piacciono tutti e due!      

INDIRECT OBJECT PRONOUNS. Complete each sentence with the correct form of the indirect object pronoun.   1. Gino [1] racconta una favola. – Gino tells her a fairytale.   2. Caterina [2] spedisce una cartolina. – Caterina sends them a postcard.   3. Stefano [3] telefona. – Stefano calls him.