BIOS 256: WEEK 7 DEVELOPMENT AND INHERITANCE EXAM

fertilization happens in the ___ and implantation in the ___ - uterine tube; uterus all organs in an embryo are formed by the ___ week of development - 8th the heart begins to function in the ____ stage of development - embryonic implantation happens during the ___ stage - preembryonic the special type of division of the zygote - cleavage the 3 primary germ layers give rise to - all organs of the body the fetal stage - is characterized by growth of the fetus the morula is - a solid ball of cells meiosis results in ___ gametes, while mitosis results in ___ cells - haploid; diploid chromatin, chromosomes, genes, and genetic material are all terms used to describe ___ in different configurations - dna match the term to the structure of the chromosome - 1. chromosome 2. chromosome 3. chromosome 4. chromosome (i don't don't know why) crossing over occurs during - meiosis I meiosis results in - 4 cells with half the normal number of chromosomes (haploid) crossing over - occurs during meiosis between chromatids of homologous chromosomes arrange these from smallest to largest - gene chromosome genome a baby was born that externally had female reproductive structures but upon the inspection of the baby's karyotype, the sex chromosomes were determined to be XY. this baby is ___ - intersex which 3 factors result in large amount of genetic recombination in offspring: (check all that apply) - joining of sperm and egg genomes crossing over independent assortment a chromosome - can have one or two chromatids if a sperm is missing chromosome #6, but has the rest of the autosomes and the sex chromosome - it will not result in a viable embryo a karotype is - a visual of the persons's chromosomes to make sure there are no chromosomal abnormalities sperm carry ___ and eggs carry ___ sex chromosome(s) - x or y chromosome plus 22 autosomes; x chromosome plus 22 autosomes