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