Question

Please answer 1-5

Which of the following do leukocytes use to determine whether something is foreign to the body or should be destroyed? Select one: a major-histocompatibility proteins O b. antigen O c. antibodies O d. all of the above When crossing a plant that is homozygous dominant for flower color (purple) with a plant that is homozygous recessive for flower color (white), the FI generation is Select one O a homozygous and white Ob homozygous and purple c heterozygous and white d heterozygous and purple During which of the following phases of the cell cycle is DNA replicated? Select one mitosis Ob metaphase Cinterphase od cytokinesis

Answer 1

Q1.which of the following do leucocytes use to determine whether something is foreign to the body or should be destroyed.

Answer is Major histocompatibility complex.

Q2.cross between homozygous dominant(purple) and homozygous recessive (white).

PP × ww

Pw , Pw , Pw , Pw.

All Heterozygous and purple.

Q3.

DNA replication occurs in Interphase.

Q4. Complimentary strand to TAACGTACG. is

Option d .

ATTGCATGC

Q5.

Which of the following cell types are produced during the primary response to a virus and provides a swift response during second exposure to same virus.

Answer is option b.

Memory cells.