A) immunity B) evolution C) heredity D) differentiation
A) type and order of amino acids B) environment of the organism C) nutritional habits of the organism D) availability of starch molecules
A) selective breeding B) gene insertion C) differentiation D) cloning
A) reproductive cells composed of molecular bases B) large molecules that have only one function C) folded chains of bonded glucose molecules D) coiled strands of genetic material
A) habitat modification B) natural selection C) asexual reproduction D) genetic engineering
A) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases. B) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not C) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria D) The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
A) some of the DNA in some of the cells will be removed by chemical reactions B) DNA is functional in only 10% of the cells of the body C) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other D) only the DNA in certain cells will replicate
A) fertilization → mitosis → meiosis B) mitosis → fertilization → meiosis C) meiosis → fertilization → mitosis D) fertilization → meiosis → mitosis
A) meiotic cell division B) recombination C) zygote formation D) mitotic cell division
A) sorting and recombining of genes in meiosis B) replication and cloning C) the need to adapt and maintain homeostasis D) overproduction of offspring and competition
A) produced more reproductive cells than the male panthers in Texas B) solved the reproductive problems of the species by asexual methods C) increased the genetic variability of the panther population in Florida D) mated only with panthers from Texas
A) rapid evolution of the organism in which the cell is found B) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring C) an adaptation that will be passed on to other types of cells in the body D) increased variation in the type of organelles present in the cell
A) fusion of eggs and sperm to produce zygotes B) mitosis to produce a larger population C) internal fertilization to produce an embryo D) meiosis to produce gametes
A) oranges with seeds, only B) oranges and other kinds of fruit C) a majority of oranges with seeds and only a few oranges without seeds D) oranges without seeds, only
A) It is affected primarily by the eating habits and general health of the mother. B) It will not be affected by any medication taken by the mother C) It is affected primarily by the eating habits and general health of the father. D) It is not affected by conditions outside the embryo.
A) As an embryo develops, various tissues and organs are produced. B) Replicated chromosomes separate during gamete formation. C) Offspring have a combination of genes from both parents. D) The cells produced by a zygote usually have different genes.
A) the strange effects mannequins can have on people B) a dog named Samantha and how she helps her owner overcome obstacles C) a cancer that mutates and becomes elegant and beautiful D) a virus aimed to cure cancer that mutates and causes humans to become monster-like
A) usually lead to the death of the organism B) are usually beneficial to the organism C) cannot be passed on to offspring D) lead to more serious mutations in offspring
A) Each cell has half the normal number of chromosomes and the cells are usually genetically identical. B) Each cell has half the normal number of chromosomes and the cells are usually genetically different. C) Each cell has pairs of chromosomes and the cells are usually genetically identical. D) Each cell has pairs of chromosomes and the cells are usually genetically different.
A) have a resistance to different antibiotics B) replicate different numbers of genes C) express adaptations unlike (different than) those of the other cells D) synthesize the same proteins and enzymes as the entire colony is cloned from the original
A) affect the production of eggs B) make fertilization impossible C) decrease her ability to provide essential nutrients to an embryo D) make carrying a fetus impossible
A) ovary B) placenta C) estrogen D) progesterone
A) are easily digestable B) are made up of nutrient-rich sugars C) carry progesterone and fool the mother's body into thinking it is already pregnant D) provide plenty of testosterone for her well-being
A) inserting part of their DNA into the bacterial cells B) producing toxins that compete with bacterial toxins C) causing mutations in the bacteria D) engulfing (devouring) and digesting the bacteria whole
A) hijacks cells into making more viruses leaving the host defenseless to disease B) provides immediate immunity to other diseases C) automatically causes AIDS D) it takes a very long time to begin injecting its viral RNA code into the hosts' cells |