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