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