Question

how can the knowledge of the human genome be useful for in - vitro fertilization techniques? a genes with the desired traits can be introduced into the sperm of infertile males. b the genes that cause infertility can be removed from the female ovum. c proteins can be injected into infertile individuals to increase fertility. d disease - free sperm and ova could be identified and used.

Explanation:

Human genome knowledge enables screening of gametes for genetic diseases. Identifying disease-free sperm and ova is a key application in IVF to reduce genetic disease risk in offspring. Options A (introducing desired traits), B (removing infertility genes), and C (injecting proteins) are not primary uses of genome knowledge in IVF.

Answer:

D. Disease-free sperm and ova could be identified and used.