In human blood types 3 alleles are possible A B and O Which

In human blood types, 3 alleles are possible: A, B and O. Which one of these children could not have come from a Type A man and a Type B woman? A. Type A B. Type O C. Type AB D. All 3 are possible A karyotype of fetal cells obtained by amniocentesis can reseal all of the following EXCEPT whether the baby A. will be male. B. will have Down syndrome. C. will have cystic fibrosis. D. will base trisomy 18. Pregnant women who experienced starvation during World War II were more likely to have grandchildren who were obese. This was due to A. random mutations in the DNA. B. changes in the bases of RNA. C. survival of the finest. D. epigenetic factors. Which of these is never found outside the nucleus? A. DNA. B. messenger RNA. C. transfer RNA. D. ribosomal RNA. Which of these is found ONLY in cells that make insulin and not in any other body cell? A. the gene for making insulin. B. the messenger RNAs for making insulin. C. transfer RNAs. D. ribosomes. The structure of a chromosome during metaphase is most accurately described as A. DNA supercoiled around histones B. DNA encased with a protein covering. C. An elongated double helix of DNA. D. A unzipped double helix of DNA. What method is used to quickly survey for the presence of 100s of specific, short base sequences in your DNA? A. DNA fingerprints B. DNA Xray diffraction C. DNA microarrays D. DNA Polymerase Chain Reaction. Looking at the \"Tree of Life\", one might get the impression that all species came into existence A. to serve humanity. B. to make more DNA. C. to generate oxygen. D. to absorb the sun\'s energy. The main difference between the 3 kinds of RNAs is A. the way they fold. B. the amount of thymine in their base sequences. C. the kind of sugar in their backbones. D. the number of peptide bonds they have. What molecule has an amino acid on one end and an anticodon on the other end? A. DNA B. Messenger RNA C. Transfer RNA D. Ribosomal RNA The terms triplet and universal refer to A. the genetic code B. the transcription of RNA C. DNA replication D. patterns of inheritance The risk of Down syndrome is higher in older women because A. the ovum\'s DNA is as old as the woman. B. the chance of non-disjunction is lower in older women. C. mutations accumulate in older men\'s sperm. D. All of the above.

Solution

Answer:

31. (D) All 3 are possible

Type A father and Type B mother can produce children with blood groups A, B, AB and O.

32. (C) will have cystic fibrosis.

Cystic fibrosis is caused by a deletion of F508. This mutation cannot be detected in a karyotype.

33. (D) Epigenetic factors

34. (A) DNA

DNA is stored in the nucleus only (if we disregard mitochondria and chloroplast DNA) because it is much too large and unstable to leave it. DNA is located in the nucleus because it would be destroyed outside of it.

RNA is found in both nucleus and cytoplasm, as it is synthesized from the DNA template in the nucleus but is addressed to the cytoplasm.

(Answered the first 4 questions according to rules of Chegg)